Headache that came on suddenly

On this page you can find conditions that could be the cause of these symptoms although it is not a complete list of possible conditions.

Please note that if you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.

Information written and reviewed by Certified Doctors.

Conditions

Aneurysm

\\ An aneurysm is a bulge in a blood vessel caused by a weakness in the blood vessel wall, usually where it branches.


Symptoms of this condition may include:

  • Weakness of one side of the body
  • Severe headache
  • Numbness or tingling on one side of body
  • Headache that came on suddenly
  • Neck stiffness

More information on Aneurysm is available here.

If you are worried about this condition you can try our free AI Symptom Checker here.

Cluster headache

Cluster headaches are excruciating attacks of pain in one side of the head, often felt behind the eye.


Symptoms of this condition may include:

  • Pain on left or right side of head
  • Severe headache
  • Headache that came on suddenly
  • Blocked nose
  • Pain behind the eyes

More information on Cluster headache is available here.

If you are worried about this condition you can try our free AI Symptom Checker here.

Migraine

A migraine is usually a moderate or severe headache felt as a throbbing pain on one side of the head.


Symptoms of this condition may include:

  • Headache
  • Feeling sick or nausea
  • Headache that came on suddenly
  • Severe headache
  • Pain on left or right side of head

More information on Migraine is available here.

If you are worried about this condition you can try our free AI Symptom Checker here.

Subarachnoid haemorrhage

A subarachnoid haemorrhage is a type of stroke caused by bleeding in and around the brain.


Symptoms of this condition may include:

  • Headache that came on suddenly
  • Severe headache
  • Feeling sick or nausea
  • Vomiting
  • Eyes sensitive to light

More information on Subarachnoid haemorrhage is available here.

If you are worried about this condition you can try our free AI Symptom Checker here.