Scared of developing a brain aneurysm at 23. no fam history, no smoking, no drinking, no symptoms (headache, blurry left dry eye). should i worry?

Brain aneurysm : What symptoms make you think an aneurysm is imminent ? If it is a major concern for you, seek a medical consult. With the information you've given us, the probability seems low.

No: You have no reason to worry based on what you're telling us.

Relax: The most common form of an aneurysm at your age is a congenital berry aneurysm, and it is highly unlikely you will acquire one under normal circumstances.