I have had two brain aneurysm over a period of 7 years.They coiled both bleeds ,unfortunately they have informed me last year i have 2 percent chance of having another one,they said next time they would have to do surgery.I have been reading your page,i would like to make all readers aware that you do have pre warning signs.Six months before my first bleed i had severe headaches about once a month,face pain, dizziness ,tiredness.I had the same syptoms for the second one.It has been 4 years now since my last bleed.I am now getting severe ,unusual headaches again.When this has happen before a MRI ,CAT scan did not pick up that i was going to have another bleed in 6 months.