(Was this supposed to be a simple reply-post, or did you actually want to start a new thread?)
Anyway, as for me, I had brain surgery when I was 14 (I am 27 now). It was a rather horrible experience, first the diagnosis of a brain tumor, and the surgery and aftermath was a terrible ordeal.
I was unconscious, knocked out on anasthesia, for about ten hours, during which the surgery took place. Afterwards, I was badly incoherent for a day or so. The movement, focusing and pupil control of my eyes wouldn't sync, I couldn't talk, I was puking non-stop (dry heaving for hours, since there was nothing left to chuck up), I had a tube, draining blood and fluids from my brain, stapled to my skull. Not to mention the quarter sized hole in my forehead.
After a couple of days, the hospital had completed some tests on the removed brain matter, and the tumor turned out to be benign. I didn't need chemotherapy or radiation or nothing like that.
We could all go home (my family had stayed with me at the hospital for the procedure) and later we actually removed the stiches on our own, with sterilized tools.
All in all, the experience sucked big time.
As for now, I am rather self conscious when it comes to the scar in my head. I mean, there is no short answer to give if someone asks where it's from. Also, I think people get a bit freaked out when it comes to stuff like this.
The moral of this story is, don't get a brain tumor if you have the choice!