What are the symptoms of brain aneurysm I should be looking for?

Headache. Symptoms of a brain aneurysm include severe headache, neck stiffness, confusion, altered vision, and light sensitivity. If you have any of these symptoms, you should see a physician immediately.
Ruptured or not? Most nonruptured aneurysms cause little or no symptoms depending on their location. Ruptured aneurysms cause brain hemorrhage and may cause symptoms ranging from moderate headache to severe headaches, loss of consiousness and coma.