Normal mri 3 years ago having tingling on head pain weakness can a brain aneurysm or other life threatning illness be possible in that length of time?

No: The tingling over your head could be due to scalp irritation or even an issue with a cutaneous nerve, but is not indicative of an intracranial structural lesion. If you are very concerned about "life threatening conditions" might be worthwhile exploring this with your doctor.

Possible: It's possible but very unlikely. The incidence of brain aneurysm rupture is.