Headache

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John Miller Physiotherapist Erin Runge Physiotherapist
Article by John Miller & Erin Runge
Headache causes shown by young adult with temple, eye, neck and jaw pain in clinic

Common headache types and pain locations.

What are the most common headache causes?

Headache causes usually fall into two groups. Primary headaches are headache conditions themselves. Secondary headaches happen when another issue contributes to the pain.

Common headache causes include migraine, tension-type headache, cluster headache, neck headache, jaw-related headache, illness, medication overuse, or head and neck injury.

If you are trying to work out what type of headache you have, start with the broader headache physiotherapy guide. Compare where the pain sits, what it feels like, what triggers it, and whether you also have nausea, light sensitivity, neck pain, jaw pain, dizziness, or recent injury.

The International Headache Society groups headaches using the ICHD-3 classification. This framework separates primary headache disorders from headaches caused by another health issue.

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Quick clues that may help narrow the cause:

  • One-sided throbbing pain with nausea or light sensitivity often fits migraine.
  • A tight band-like ache across the forehead or into the neck often fits tension-type headache.
  • Pain starting in the upper neck or base of the skull may fit a cervicogenic neck headache.
  • Jaw pain, clicking, or clenching may point to a TMJ headache.
  • Headache after a hit to the head or neck needs consideration of concussion.

How are headache causes classified?

Headache causes are usually classified as primary or secondary. Primary headaches include migraine, tension-type headache, and cluster headache. Secondary headaches happen because something else is contributing to the pain, such as neck dysfunction, jaw irritation, concussion, illness, medication overuse, or another medical problem.

This distinction matters because the best plan depends on the likely driver. For example, a migraine plan differs from care for a neck headache or a jaw-related headache.

Common headache causes

Common headache causes include primary headache disorders, such as migraine, tension-type headache, and cluster headache. They also include secondary causes, such as neck joint irritation, muscle tension, jaw dysfunction, concussion, infection, sinus symptoms, medication overuse, and other medical conditions.

Primary headache causes

Migraine often causes moderate to severe head pain, commonly on one side, with nausea, light sensitivity, sound sensitivity, or visual disturbance. Tension-type headaches more often feel like a tight or pressing band and may link with stress load, muscle tension, posture habits, or poor sleep. Cluster headaches are usually severe, one-sided, and focused around one eye.

Secondary headache causes

Secondary headaches happen when another issue refers pain into the head. Common examples include cervicogenic headaches, TMJ headaches, headache after concussion, and headache related to illness, medication use, or broader medical conditions. Some people also have more than one headache type at the same time.

How can headache symptoms point to the cause?

Headache symptoms often give useful clues, although they do not confirm a diagnosis on their own. Location, intensity, duration, timing, triggers, and associated symptoms all help narrow the likely cause.

How to identify your headache type quickly:

Headache cause comparison

Pattern Common clues Useful next step
Migraine Throbbing pain, nausea, light sensitivity, aura, or sound sensitivity. Compare symptoms with the migraine guide.
Tension-type headache Band-like pressure across the forehead, temples, neck, or shoulders. Review the tension headache guide.
Neck headache Pain starts near the upper neck or base of the skull. Check the cervicogenic neck headache guide.
Jaw headache Jaw pain, temple pain, clicking, clenching, chewing pain, or stiffness. Read about TMJ headache.
Concussion headache Headache after a head, face, or neck impact. Use the concussion return-to-sport guide.

Tension-type headache

A tension-type headache often feels like a steady, non-throbbing band across the forehead, temples, or upper neck. Neck and shoulder tightness are common. Unlike migraine, severe nausea and strong light sensitivity are usually less prominent.

TMJ headache physiotherapy jaw assessment with patient lying supine

Jaw movement assessment may help identify TMJ-related headache symptoms.

Jaw headache

A jaw-related or TMJ headache is often felt around the temple, jaw, ear, or one side of the face. It may be aggravated by clenching, chewing, yawning, or long dental appointments. Clicking, locking, or jaw stiffness can also be present.

Neck headache

A neck headache often starts in the upper neck or base of the skull and can spread toward the forehead, eye, or top of the head. It may worsen with sustained posture, neck movement, desk work, or poor sleep positions.

Cluster headache

Cluster headache usually causes intense one-sided pain around the eye, often with a red eye, tearing, blocked or runny nose, or restlessness. These headaches commonly arrive in repeated bursts or clusters.

Concussion headache

Headache after a blow to the head, face, or neck may be linked to concussion. If the headache worsens, or comes with confusion, vomiting, seizure, slurred speech, unusual behaviour, weakness, or drowsiness, urgent medical review is important.

When should you worry about a headache?

You should worry about a headache when it is sudden and severe, clearly different from your usual pattern, follows trauma, or comes with fever, seizure, confusion, weakness, vision loss, or fainting. Those features need urgent medical assessment rather than self-management.

Seek urgent medical care if your headache:

  • starts suddenly and is extremely severe
  • follows a head or neck injury
  • comes with fever, neck stiffness, confusion, or seizure
  • includes weakness, numbness, fainting, or vision loss
  • is a major change from your normal headache pattern

For a fuller guide, see severe headache symptoms and red flags.

Could your neck or jaw be causing your headache?

Yes. Neck joints, upper cervical muscles, jaw joints, and jaw muscles can all refer pain into the head. That is why some headaches feel worse with posture, desk work, jaw clenching, chewing, or limited neck movement.

If your symptoms seem linked to the neck, read what causes cervicogenic headache or how to get rid of a neck headache. If chewing, clenching, or jaw stiffness are part of the picture, a TMJ headache becomes more likely.

Related information

Frequently asked questions about headache causes

What is the most common cause of headaches?

Common headache causes include migraine, tension-type headache, neck-related headache, jaw-related headache, illness, and head or neck injury. Tension-type headache is one of the most common primary headache patterns, but the right diagnosis depends on your symptoms and history.

Can neck pain cause a headache?

Yes. Upper neck joints, muscles, and surrounding tissues can refer pain into the head. This pattern is often described as a cervicogenic headache or neck headache, especially when neck movement or posture aggravates symptoms.

Can jaw problems cause headaches?

Yes. Jaw clenching, TMJ irritation, grinding, and chewing overload can all contribute to headache symptoms. A TMJ headache often sits around the temple, jaw, ear, or one side of the face and may come with clicking or stiffness.

How do I know if it is migraine or tension headache?

Migraine more often causes throbbing pain, nausea, light sensitivity, or aura. Tension-type headache more often feels like a steady band or pressure without strong nausea. Some people have overlapping features, so assessment can still help.

Are all headaches serious?

No. Most headaches are not caused by serious disease. However, a sudden severe headache, headache after trauma, or headache with neurological or systemic symptoms needs urgent medical review. That is why recognising headache red flags matters.

Who should assess headache causes?

Your GP, neurologist, dentist, or physiotherapist may all play a role depending on the suspected cause. Physiotherapists commonly help assess headaches linked to the neck, jaw, posture, muscle tension, movement control, or recovery after minor neck injury.

What matters most:

  • Headache causes are best identified by location, triggers, and associated symptoms.
  • Neck, jaw, migraine, and tension headaches often overlap, so patterns matter more than single signs.
  • Red flag symptoms always override self-diagnosis and need urgent medical review.

When to monitor vs act:

  • Monitor: familiar headache pattern, mild to moderate symptoms, settles with rest or usual care
  • Book assessment: persistent, recurring, or unclear headache cause
  • Urgent care: sudden severe headache, neurological symptoms, or headache after injury

What to do next

If you are not sure what is causing your headaches, compare your symptom pattern rather than guessing from one sign alone. The most useful clues are the pain location, symptom behaviour, associated features, and whether the problem seems linked to the neck, jaw, trauma, illness, or a known migraine pattern.

If your headache seems related to your neck, jaw, posture, muscle tension, or a previous injury, a physiotherapist may help assess the source and guide the next step. If red flags are present, seek urgent medical review first.

Tension headache neck and shoulder treatment during physiotherapy session

Physiotherapy may help when neck and shoulder tension contributes to headache symptoms.

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References

  1. Headache Classification Committee of the International Headache Society (IHS). The International Classification of Headache Disorders, 3rd edition. Cephalalgia. 2018;38(1):1-211. doi:10.1177/0333102417738202.
  2. Lee HJ. Update on Tension-type Headache. Headache Pain Res. 2025;26(1):38-47. doi:10.62087/hpr.2024.0025.
  3. Sico JJ, Sandbrink F, Oskoui M, et al. 2023 U.S. Department of Veterans Affairs and U.S. Department of Defense Clinical Practice Guideline for the Management of Headache. Ann Intern Med. 2024;177(12):1675-1694. doi:10.7326/ANNALS-24-00551.
  4. World Health Organization. Migraine and other headache disorders. Updated October 24, 2025. Accessed March 31, 2026.

How Do You Get Rid Of A Neck Headache?

John Miller Physiotherapist Erin Runge Physiotherapist
Article by John Miller & Erin Runge
Neck headache physiotherapy upper cervical spine assessment in clinic

Upper neck assessment for neck headache.

If your headache starts at the base of your skull, spreads into your head, and worsens with neck movement, desk work, poor posture, or sleeping awkwardly, it may be a neck headache. This type of headache often improves when treatment targets the upper neck joints, muscles, posture, and movement control.

Many people with a cervicogenic neck headache respond well to a combination of physiotherapy, targeted exercise, and practical daily habit changes. If your symptoms also relate to neck pain, stiffness, work posture, or repeated head positions, a physiotherapist can assess the likely cause and guide the most suitable treatment plan.

Quick Summary: How to Get Rid of a Neck Headache

  • Confirm that the headache is likely coming from your neck.
  • Improve upper neck joint movement and reduce muscle tension.
  • Build neck and shoulder blade strength with targeted exercises.
  • Improve posture, desk setup, and daily movement habits.
  • Address recurring triggers early before they become persistent.

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How Do You Get Rid of a Neck Headache?

The best way to get rid of a neck headache is to identify why the upper neck is referring pain into your head, then treat that driver. For some people, the main issue is stiff upper cervical joints. For others, it is muscle tension, poor movement control, sustained posture, weak neck muscles, or a mix of several factors.

Common Treatment Options for a Neck Headache

  • Upper neck joint treatment when stiffness or irritation contributes to symptoms.
  • Neck strengthening and deep neck control exercises when support and endurance are reduced.
  • Muscle treatment such as stretching, soft tissue therapy, neck massage, or dry needling where appropriate.
  • Posture correction and movement retraining for work, driving, study, or phone use.
  • Workstation and ergonomic advice if symptoms flare during desk tasks.
  • Practical self-management strategies to reduce future flare-ups.

What Causes a Neck Headache?

A neck headache usually starts when the upper neck joints, muscles, or nearby pain-sensitive tissues refer pain into the head. Symptoms often worsen with neck movement, sustained sitting, driving, screen use, or poor tolerance to repeated postures.

This pattern is commonly described as a cervicogenic headache. It is classed as a secondary headache because the pain source sits in the neck rather than the head itself. The International Classification of Headache Disorders describes cervicogenic headache as headache attributed to a disorder of the neck.

In some people, the problem relates more to stiff upper neck joints. In others, it involves tight muscles, reduced neck strength, poor movement control, or a combination of these factors. Problems such as neck pain, posture strain, and upper cervical irritation often overlap.

Neck headache upper cervical movement assessment by physiotherapist

Upper neck movement can trigger referred headache.

How Can Physiotherapy Help a Neck Headache?

Physiotherapy may help a neck headache by identifying whether the main driver is joint stiffness, muscle overload, nerve sensitivity, posture strain, or weak neck control. Treatment then targets the likely problem instead of only masking symptoms.

Your physiotherapist may use a mix of joint treatment, mobility work, neck strengthening, postural retraining, and home exercises. Where appropriate, treatment may also include dry needling, soft tissue techniques, or referral for further review if your presentation does not fit a straightforward neck headache pattern.

What Treatment May Be Used for a Neck Headache?

Treatment depends on what your assessment shows. A good plan usually combines symptom relief with a longer-term strategy to reduce recurrence.

  • Stiff neck joints: may respond to joint mobilisation or manual joint treatment to improve movement and reduce local irritation.
  • Weak or poorly controlled neck muscles: may improve with deep neck control and strengthening exercises.
  • Tight or overactive muscles: may settle with stretching, soft tissue release, neck massage, or selected needling techniques.
  • Posture-related strain: may improve with posture correction, better sitting posture, and improved desk setup.
  • Workstation aggravation: may need an ergonomic workstation assessment and regular movement breaks.
  • Recurring flare-ups: often need a prevention plan, not just short-term pain relief.

Can Massage or Dry Needling Help a Neck Headache?

Massage or dry needling may help a neck headache when muscle tension, trigger points, or guarding contribute to symptoms. They are usually most helpful as part of a broader plan that also improves strength, movement, and posture tolerance.

If you have significant muscle tightness, options such as neck massage or dry needling may reduce symptoms in the short term. However, they usually work better when combined with assessment and exercise-based rehabilitation.

When Should You Worry About a Neck Headache?

A neck headache needs more urgent medical review if it is new, severe, rapidly worsening, follows trauma, or occurs with dizziness, fainting, vision change, fever, speech changes, numbness, or progressive weakness.

If your headache does not behave like your usual pattern, or if it is not clearly linked to neck movement or posture, seek prompt medical advice. For broader guidance, read severe headache symptoms and the difference between primary and secondary headaches.

Who Treats Cervicogenic Neck Headache?

Physiotherapists commonly assess and treat cervicogenic neck headache, especially when the headache links with neck movement, stiffness, posture, or upper cervical muscle overload. Treatment aims to reduce symptoms and address why the headache keeps returning.

Many people notice meaningful improvement within days or weeks, although this depends on how long the problem has been present, how irritable it is, and what is driving it. Some people feel relief quickly after treatment. Others need a short rehabilitation plan to improve movement, strength, and tolerance to daily tasks.

Helpful Supports for Some People

Some people with posture-related neck strain or sleep-related irritation also benefit from selected support products, such as posture aids or neck support pillows. These are not a replacement for treatment, but they can support recovery when matched to the right problem.

Neck Headache FAQs

How do I know if my headache is coming from my neck?

A headache is more likely to be coming from your neck if it worsens with neck movement, long sitting, driving, screen use, or sustained posture. Many people also notice neck stiffness, tenderness near the base of the skull, or one-sided pain that starts in the upper neck and spreads forward.

Will a neck headache go away on its own?

Some mild neck headaches do settle with rest, movement changes, and better posture. However, recurring or persistent symptoms often return if the real driver is not addressed. If your headaches keep coming back, an assessment can help identify whether joints, muscles, posture, or load tolerance are contributing.

What exercises help a neck headache?

The right exercises depend on the reason for your neck headache. Common starting points include gentle neck mobility work, chin nod control exercises, shoulder blade strength, and posture drills. A physiotherapist can choose the right dosage and avoid exercises that flare your symptoms.

Is it okay to massage a neck headache?

Gentle massage may help when muscle tightness is part of the problem. It can reduce short-term tension and improve comfort. Even so, massage is not always enough on its own. If the headache is driven by joint stiffness, poor control, or repeated posture strain, broader treatment usually works better.

Can poor posture cause a neck headache?

Poor posture by itself is rarely the whole story, but long periods in one position can overload the upper neck and surrounding muscles. Desk work, phone use, driving, and poor workstation setup can all contribute. A better setup plus movement breaks and exercise often helps more than chasing a perfect posture.

Should I see a physiotherapist for a neck headache?

Yes, especially if your headaches are recurring, linked to neck pain, or triggered by posture and movement. A physiotherapist can assess whether the headache is likely to be cervicogenic and guide treatment that fits your symptoms, activity levels, and daily demands.

More Information

Neck headache upper cervical rotation retraining with physiotherapist guidance

Guided movement can support neck headache recovery.

What to Do Next

If your neck headache keeps returning, interrupts work or sleep, or links with neck movement, book an assessment so the likely driver can be identified early. The right plan may include hands-on care, exercise, posture advice, or workstation changes depending on your presentation.

If you also have severe headache symptoms, recent trauma, new neurological symptoms, or a headache pattern that feels unusual for you, seek urgent medical advice first.

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Choose your preferred PhysioWorks clinic and book online.

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Neck Products

These neck products are commonly used by our physiotherapists to improve strength, posture, movement, plus assist home exercise programs.

View all neck products

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Get free physiotherapy tips, exercise videos, recovery advice, and blog updates.

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References

  1. Jull G. Cervicogenic headache. Musculoskelet Sci Pract. 2023;66:102787. doi:10.1016/j.msksp.2023.102787
  2. Jung A, Carvalho GF, Correa LA, et al. Physical therapist interventions to reduce headache intensity, frequency, and duration in patients with cervicogenic headache: A systematic review and network meta-analysis. Phys Ther. 2024;104(1):pzad154. doi:10.1093/ptj/pzad154
  3. Martins L, et al. Efficacy of nonsurgical interventions for the management of adults with cervicogenic headache: A systematic review and meta-analyses. Musculoskelet Sci Pract. 2025.
  4. Onan D, et al. The efficacy of physical therapy and rehabilitation approaches in cervicogenic headache: A systematic review and meta-analysis. J Man Manip Ther. 2023.
  5. International Headache Society. 11.2.1 Cervicogenic headache. The International Classification of Headache Disorders, 3rd edition.

Primary vs Secondary Headache


John Miller Physiotherapist


Shane Armfield Physiotherapist

Article by
John Miller,
Shane Armfield
Primary vs secondary headache upper cervical spine assessment by physiotherapist

Upper neck assessment can help identify headache drivers.

What Is the Difference Between a Primary and Secondary Headache?

A primary headache is the headache condition itself. A secondary headache happens because of another issue. This difference helps guide care, because treatment should match the main cause of your symptoms.

A headache may be primary or secondary. Primary headaches include migraine, tension headache and cluster headache. Secondary headaches may relate to neck pain, jaw problems, whiplash, illness, medication use, sinus issues or head trauma.

In simple terms, a secondary headache is a symptom. It points to another driver that needs to be assessed.

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Key takeaway: Primary headaches are the main condition. Secondary headaches come from another cause, such as the neck, jaw, trauma, medication use or illness.

What Are Primary Headaches?

Primary headaches are headache disorders that are not caused by another medical problem. They may still be severe, recurring or disabling, but the headache pattern itself is the main diagnosis.

Common primary headache types include:

  • Migraine: often linked with throbbing pain, light sensitivity, nausea or aura.
  • Tension headache: often feels like pressure, tightness or a band around the head.
  • Cluster headache: usually causes severe pain around one eye or temple.

The International Headache Society classifies headache disorders into primary and secondary groups. This helps clinicians describe patterns clearly and decide when further medical review may be needed. You can read the classification overview through the International Classification of Headache Disorders.

What Are Secondary Headaches?

Secondary headaches occur because another issue is irritating pain-sensitive tissues or referring pain into the head. The headache is real, but the care pathway usually focuses on the underlying driver.

Secondary headache examples include:

If your headache is linked to neck joint stiffness, jaw tension or whiplash, treatment usually focuses on that driver. This may include movement testing, education, exercise, manual therapy, load changes and referral if the pattern is not clear.

Can You Have More Than One Headache Type?

Yes. Some people have more than one headache pattern at the same time. A person may have migraine as the main condition, while neck stiffness, jaw tension or stress also increases symptoms.

This overlap can make headaches confusing. One treatment may help part of the pain but not the whole pattern. A careful history and physical assessment can help separate the likely drivers.

Secondary headache jaw and upper neck movement demonstration with physiotherapist

Jaw and neck movement may influence headache symptoms.

Why Does the Correct Headache Type Matter?

The correct headache type helps guide the next step. Primary headaches may need trigger review, pacing, sleep support, stress management, exercise and medical care. Secondary headaches need care aimed at the cause.

For example, a neck-related headache may improve when neck movement, strength, posture, work setup and upper neck sensitivity are addressed. A jaw-related headache may need jaw assessment and advice. A headache with warning signs needs medical review first.

Common clues that a headache may have a neck or jaw link include:

  • head pain that starts with neck stiffness
  • pain that changes with neck movement or posture
  • headache after whiplash or head trauma
  • jaw pain, clenching or clicking with headache
  • tender upper neck, shoulder or jaw muscles

When Should You Worry About a Headache?

Seek urgent medical advice if your headache is sudden, severe, unusual or linked with neurological symptoms. Most headaches are not due to serious disease, but some patterns need prompt medical care.

Headache warning signs may include:

  • sudden severe headache
  • headache after head trauma
  • headache with fever or neck stiffness
  • new weakness, numbness, confusion, vision loss or fainting
  • seizure with headache
  • a major change in your usual headache pattern

If these symptoms occur, seek urgent medical care. Healthdirect also explains when headache symptoms need medical review in its headaches guide.

How Can Physiotherapy Help with Secondary Headaches?

Physiotherapy may help when a headache is linked to the neck, jaw, posture, muscle tension or whiplash. The aim is to identify the main driver, explain what is happening and guide a safe plan.

Your assessment may include:

  • neck movement testing
  • upper neck joint assessment
  • muscle tenderness checks
  • jaw movement and clenching review
  • posture and work-habit review
  • screening for signs that need medical care

At PhysioWorks, we commonly assess people with headaches and migraines, especially when symptoms may relate to the neck, jaw, stress, posture or previous injury.

Related Headache Guides

These guides may help you compare common headache patterns:

Primary vs Secondary Headache FAQs

What is the difference between a primary and secondary headache?

A primary headache is the condition itself, such as migraine, tension headache or cluster headache. A secondary headache occurs because of another issue, such as whiplash, neck dysfunction, jaw problems, medication use, illness or injury.

Is migraine a primary headache?

Yes. Migraine is classified as a primary headache disorder. Some people with migraine also have neck or jaw factors that can increase symptoms.

Can neck pain cause a headache?

Yes. Neck joints, muscles and nearby tissues can refer pain into the head. This pattern is often called a cervicogenic headache.

Can jaw problems cause headache?

Yes. Jaw joint irritation, clenching, muscle tension or poor jaw control can be linked with headache in some people. This is often described as a TMJ headache.

Can whiplash cause a secondary headache?

Yes. Headache can occur after whiplash or neck trauma. Assessment may consider neck movement, upper cervical joint sensitivity, muscle guarding and warning signs that need medical review.

When should I worry about a headache?

Seek urgent medical advice if you develop a sudden severe headache, headache with fever, weakness, numbness, confusion, vision loss, fainting, seizure, recent trauma or a major change from your usual headache pattern.

What to Do Next

If you are unsure whether your symptoms fit a primary or secondary headache pattern, a detailed assessment can help clarify the likely source.

If your headache seems linked to your neck, jaw, posture, whiplash or muscle tension, a physiotherapist may assess the driver and explain suitable treatment or referral options.

Start with the Headaches & Migraines guide, or book an appointment if you would like help assessing your symptoms.

Book your appointment – 24/7

Choose your preferred PhysioWorks clinic and book online.

View all clinic locations

Neck Products

These neck products are commonly used by our physiotherapists to improve strength, posture, movement, plus assist home exercise programs.

View all neck products

Follow PhysioWorks

Get free physiotherapy tips, exercise videos, recovery advice, and blog updates.

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References

  1. Ashina M. Migraine. N Engl J Med. 2020;383(19):1866-1876. doi:10.1056/NEJMra1915327.
  2. Steiner TJ, Stovner LJ, Jensen R, Uluduz D, Katsarava Z. Migraine remains second among the world’s causes of disability. J Headache Pain. 2020;21:137. doi:10.1186/s10194-020-01208-0.
  3. Safiri S, Pourfathi H, Eagan A, et al. Global burden of migraine in 204 countries and territories. Pain. 2022;163(2):e293-e309. doi:10.1097/j.pain.0000000000002275.
  4. Anarte-Lazo E, Carvalho GF, Schwarz A, et al. Differentiating migraine and cervicogenic headache. Cephalalgia. 2021;41(10):1090-1108. doi:10.1177/03331024211024935.
  5. Demont A, Luedtke K, May A, et al. Cervicogenic headache diagnosis: systematic review. Musculoskelet Sci Pract. 2022;62:102661. doi:10.1016/j.msksp.2022.102661.
  6. Becher B, Lozano-López C, Moreira de Castro-Carletti E, et al. Therapeutic exercise for cervicogenic headache. Musculoskelet Sci Pract. 2023;66:102822. doi:10.1016/j.msksp.2023.102822.

When should you worry about a severe headache?

Severe headache symptoms can be urgent when they are sudden, unusual, worsening, or linked with neurological signs.


John Miller Physiotherapist


Shane Armfield Physiotherapist

Article by
John Miller,
Shane Armfield
Severe headache symptoms red flag checklist for urgent medical review

Severe headache symptoms checklist showing red, orange and green flags.

Severe headache symptoms can feel scary. Most headaches are not dangerous, but some patterns need urgent medical review. The key is spotting red flags first, then considering common headache drivers such as neck stiffness, jaw tension, migraine patterns, stress, sleep disruption, or screen-related posture strain.

For a broader guide to causes, patterns, and physiotherapy management options, see our Headache Physiotherapy hub.

Call 000 now: If your headache is sudden, severe, unusual, or comes with vomiting, confusion, neck stiffness, vision changes, weakness, fainting, seizure, speech changes, balance loss, or recent injury, call 000 in Australia or go to your nearest emergency department.

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Short answer: when are severe headache symptoms urgent?

Seek urgent medical care if your headache is sudden and severe, feels different from your usual pattern, or comes with neurological symptoms such as weakness, confusion, speech changes, vision changes, facial droop, balance problems, fainting, or seizure.

You should also act quickly if you have fever, neck stiffness, severe neck pain, a new headache after age 50, or headache after a head or neck injury. If you are unsure, use the checklist below and seek medical advice.

Severe headache decision guide

  • Red flags: call 000 or seek urgent medical care.
  • Orange flags: book a GP or medical review soon.
  • Stable recurring headaches: consider physiotherapy after serious causes are cleared.

Red, orange and green flags for headaches

These flags help you decide what to do next. Red flags need urgent medical review. Orange flags suit a prompt GP review. Green flags often match common headache patterns, although assessment may still help if symptoms persist or limit daily life.

Red flags: seek urgent medical review

  • Sudden “thunderclap” onset: pain peaks quickly and feels extreme or “worst ever”.
  • New or clearly different pattern: a major change in your usual headaches, or a new headache you have not had before.
  • Triggered by exertion: headache starts with exercise, coughing, sneezing, straining, or sexual activity.
  • Neurological symptoms: weakness, numbness, facial droop, confusion, fainting, trouble speaking, new vision change, new balance issues, or seizure. See vertigo and dizziness if balance symptoms persist after medical clearance.
  • Systemic symptoms: fever, rash, unexplained weight loss, or feeling very unwell.
  • Neck stiffness or severe neck pain: especially with fever, marked light sensitivity, or illness. See neck pain for related non-urgent neck symptoms.
  • Immune compromise: higher risk if you have a suppressed immune system.
  • Age over 50 with new headache: new onset headaches later in life need assessment.
  • Headache after head or neck injury: particularly if symptoms worsen, or if you feel drowsy, confused, dizzy, or unsteady. See whiplash for related neck injury information after urgent concerns are cleared.

Orange flags: book a medical review soon

  • Progressively worsening headaches: headache frequency or intensity steadily increases over days to weeks.
  • New persistent daily headache: a headache becomes daily and does not settle.
  • Headache that regularly wakes you: especially if this is new for you.
  • Persistent exertion trigger: repeated headaches with straining, coughing, or lifting, even if the onset is not sudden.
  • Ongoing headache despite usual care: pain does not respond as expected to your usual strategy or medication advice.
  • New headache with significant medical change: for example pregnancy, post-partum status, new cancer history, or new clotting risk.

Green flags: often common headache patterns

  • Stable pattern: you have had similar headaches before and the pattern has not changed.
  • No neurological symptoms: no new weakness, speech change, fainting, seizure, or vision loss.
  • Clear triggers: stress, sleep disruption, dehydration, neck or jaw tension, or sustained screen posture.
  • Settles with simple measures: rest, hydration, food, sleep, or doctor-approved pain relief helps.
  • Well between episodes: you feel normal between headache flares.

For an Australian emergency guide that outlines when to call 000, see healthdirect headache advice.

What should you do if you have severe headache symptoms?

If your headache has any red flags, seek urgent medical care first. Call 000 in Australia if symptoms are sudden, severe, unusual, or linked with weakness, confusion, fainting, seizure, fever, neck stiffness, speech changes, vision changes, or recent head or neck injury.

If your symptoms fit the orange flag group, book a medical review soon. If your headache pattern is stable, familiar, and non-urgent, physiotherapy may help assess neck, jaw, posture, and movement contributors after serious causes have been cleared.

Common causes of severe headache symptoms

A severe headache does not always mean a dangerous cause. However, doctors take red flags seriously because some headaches can relate to bleeding around the brain, stroke, infection, severe blood pressure problems, inflammation of blood vessels, or other medical issues. Red flags help guide safe triage and investigation pathways.

Other severe or recurring headaches may relate to migraine, tension-type headache, cervicogenic headache, jaw-related headache, neck stiffness, poor sleep, dehydration, sustained screen posture, stress, or medication-related factors. A medical practitioner should assess new, unusual, or worsening headaches before physiotherapy management begins.

When can physiotherapy help with recurring headaches?

Headache physiotherapy upper cervical spine assessment for recurring symptoms

Upper cervical spine assessment during physiotherapy for headache management.

Physiotherapy may help when headache symptoms link to neck pain, stiffness, muscle overload, jaw tension, posture strain, or poor movement control. Your physiotherapist may assess:

  • Neck joint movement and control, including sustained posture tolerance.
  • Muscle load across the upper neck, shoulders, and jaw.
  • Jaw contribution when clenching, chewing, or facial tension triggers symptoms. See TMJ headache.
  • Workstation and screen habits that increase symptom frequency. See text neck.

Treatment may include hands-on techniques, graded exercise, pacing strategies, headache trigger education, and ergonomic changes. Importantly, physiotherapy sits alongside medical care, especially when migraine, neurological symptoms, or other medical drivers may be part of the picture.

Severe headache symptoms FAQs

What are severe headache symptoms?

Severe headache symptoms include sudden extreme head pain, a headache that is new or clearly different, or headache with neurological symptoms such as weakness, confusion, speech changes, vision changes, facial droop, balance problems, fainting, or seizure. Fever, neck stiffness, head injury, and new headaches after age 50 also need prompt medical review.

What are red flags for headaches?

Red flags include thunderclap onset, neurological symptoms, fever with neck stiffness, new headache after age 50, immune compromise, and headache after head or neck injury. These symptoms need urgent medical review because they may indicate a secondary headache that requires medical investigation.

Should I call 000 for a severe headache?

Call 000 in Australia if a severe headache is sudden, unusual, or comes with vomiting, confusion, neck stiffness, vision changes, weakness, fainting, seizure, speech changes, loss of balance, or recent injury. These symptoms may need urgent medical assessment.

What are orange flags for headaches?

Orange flags include progressively worsening headaches, a new persistent daily headache, headache that regularly wakes you, repeated exertion-triggered headaches, or headaches not responding as expected to usual care. These symptoms are not always emergencies, but they should be checked by a medical practitioner soon.

What are green flags for headaches?

Green flags often match common headache patterns. These include a stable recurring pattern, clear triggers such as stress or sleep disruption, no neurological symptoms, and feeling well between episodes. Even with green flags, assessment may help if headaches persist, change, or limit your daily life.

Can physiotherapy help headaches?

Physiotherapy may help when headaches link to neck stiffness, muscle overload, jaw tension, posture strain, or poor movement control. A physiotherapist can assess likely contributors and guide exercise, pacing, hands-on treatment, and ergonomic changes once serious causes have been ruled out.

Related information

Severe headache symptoms upper cervical rotation retraining after medical clearance

Guided neck movement after medical clearance.

What to do next

If you notice severe headache symptoms with red flags, treat it as urgent and seek medical care first. If a doctor has cleared serious causes and your headaches keep returning, a physiotherapy assessment can clarify neck, jaw, and posture contributors. A tailored plan may help reduce flare-ups and improve confidence with activity.

Choose the safest next step

  • Emergency symptoms: call 000 or go to your nearest emergency department.
  • Concerning but not emergency symptoms: book a GP or medical review soon.
  • Recurring non-urgent headaches: book a physiotherapy appointment after serious causes are cleared.

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References

  1. Do TP, Remmers A, Schytz HW, et al. Red and orange flags for secondary headaches in clinical practice: SNNOOP10 list. Neurology. 2019;92(3):134-144. doi:10.1212/WNL.0000000000006697
  2. Wijeratne T, Wijeratne C, Korajkic N, et al. Secondary headaches: red and green flags and their significance for diagnostics. eNeurologicalSci. 2023;32:100473. doi:10.1016/j.ensci.2023.100473
  3. Healthdirect Australia. Headaches. Accessed May 31, 2026.

For broader headache patterns, management options, and referral guidance, see Headache Physiotherapy.

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