### 4. Dilated Pupil
One pupil becoming noticeably larger than the other can occur if an aneurysm compresses nerves controlling the eye.
This is another symptom that should never be ignored.
### 5. Neck Pain or Stiffness
When a brain aneurysm ruptures, blood may irritate the tissues surrounding the brain, leading to severe neck stiffness and pain.
If this occurs alongside a sudden severe headache, emergency medical care is essential.
### 6. Nausea and Vomiting
Sudden nausea or vomiting accompanying an intense headache may indicate increased pressure inside the skull caused by bleeding.
Seek emergency care immediately if these symptoms occur together.
### 7. Sensitivity to Light
Bright lights may become painful after bleeding around the brain.
This symptom often appears together with severe headache and neck stiffness.
### 8. Confusion or Difficulty Speaking
Changes in thinking, confusion, slurred speech, or trouble understanding language can signal a serious neurological emergency.