Feeling sick or nausea, Severe headache and 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

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.