When I got my wisdom teeth removed, they said I had a 1 in 300 chance of getting permanent nerve damage. I won the lottery I guess...
I had it happen during a simple extraction, but it repaired itself. For 2 months it felt like the left side of my face was being burnt by bleech.
Anyway, they say that every time you go under general anesthesia, you lose 2-3 IQ points. Scary.
You don't.
It's like my body is actively conspiring against me.