why would a 18 yr.old have a ischemia attack

iam a 18 yr.old, august of last year i had a brain bleed is this normal for a young gug my age too have this. i was in the hospital fopr 5 days and in the neurosurgery intensivecare unit. why is this.

[CCF-M.D.-CRC]

Dear casper,
Of course it is not normal for an 18 year old to have bleeding inside the brain.  I can't answer your question as to why but your doctors should be able to give you their thoughts on the issue.