wisdom tooth extraction...plus weed

ok, im getting my wisdom teeth taken out tomorrow morning (all 4 of them)...i was wondering if i should blaze before (vaporize)...the surgeon said i will have nitrous oxide to start and then they will knock me out, and i will wake up an hour later feeling like i just blinked. i'm just wondering if:
A) should i vape before it?
B) how long after should i wait before vaping again?
C) even though ill be on painkillers (perks i assume)...will i get munchies and want to eat, cause that would be really bad in my situation

thanks

sorry for being antsy...need a quick answer

vape before n after lol .
be careful w/ actually smoking , they'll warn you of a dry socket n they hurt like holy hell .
peace
crispi

oh yea i blazed with my buddy when he got his out, and he was sketching about a dry socket but it was chill....