If a brain aneurysm presses on nerves in your brain, it can cause:
- a droopy eyelid
- double vision or other changes in vision
- pain above or behind the eye
- a dilated pupil
- numbness or weakness on one side of the face or body
If a brain aneurysm leaks blood or ruptures, it can cause specific signs or symptoms:
- sudden onset of headache ("the worse headache of my life")
- sudden loss of decreased consciousness and alertness
- numbness or weakness on one side of the face or body
- mood and personality changes, including confusion and irritability
- nausea and vomiting
- neck pain and stiffness
- photophobia (lights bothers or hurts the eyes)
- double vision or other changes in vision
- eyelid drooping
- seizures
Before a rupture, a patient may experience any of these brain aneurysm symptoms . Others produce no symptoms at all and their onset is without warning. Rupture of a brain aneurysm is extremely dangerous and medical attention should be sought immediately.
If it does become symptomatic, there are tests that can be performed to find and diagnose a brain aneurysm.