Thanks everybody, my mind has been eased quite a bit. It's definitely more scabbard over today, and Lil' Irish (the kitten) is doing parcour all over the apartment like a wildcat.
My 4 month old was spayed last Thursday, so it's been not quite 4 days. She's a little more sleepy than usual, but mostly normal. Eating, drinking, playing, stalking the big cat, etc. I've never dealt with spaying myself and am worrying constantly. There's been no discharge, it's not warm...