anaesthesia / laughing gas

hi! so i am due for a canine exposure surgery and removal of 3 teeth in mid-july. i was walked through the steps, and i will get laughing gas and general anesthesia through an iv. i was wondering what the chances are of getting s*?? ive been under general anesthesia before but it was through that mask thing (no clue what it’s called lmao) and not iv. im unsure if theyre different. i didnt get s* or feel n* but this was when i was like, 10 years old. i have also never been on laughing gas before, so im a bit nervous of the effects that will have on me afterwards. is getting s* a common thing? nobody in my family has ever gotten s* from either of those things. (that i know of)