Oh boy. Baxter and I are going to vet again. Cysts? Cancer...?

My cat had a lump under his front leg (armpit region) for a while. I was told it was an allergic reaction to flea bites. However, just today, I felt it and there's another! The first one is about the size of a nickel and the other is smaller than that. 

It's just under his skin and has a few crusty things on it and it's a bit pinkish in color. It's pretty flat and moves freely.

He was just recently (about a week and a half ago) injected with ketamine because he had a blockage due to grit and crystals. Could it be because of this? Since we stopped giving him dry food and started giving him two cans of wet food a day, he's been fine with urinating. He's been acting fine and has been even more playful (since he feels better)! 

He's going to the vet tomorrow, but I just want someone to let me know what it COULD be. He's licked it so the hair is thinning but otherwise acts as though it isn't there. Doesn't seem to be in pain, nothing. So worried about my baby.

 A lot of cats do develop cysts under their skin that move freely, however, I've not heard of them being "pinkish in color and crusty".  I really have no idea what it could be, but since you're going to the Vet tomorrow, best not to try to speculate too much.

Hopefully they are just benign cysts or flea or mosquito bites

I researched myself hysterical yesterday.  : [ 
But the more I look at ti the less I think it's cancer. He's pretty young, even though I know it's not uncommon for young cats to have cancer. 
He's going to go next Thursday to the vet. Too many kitties booked in today, hahaha.

Too bad you couldn't get him in today.  Waiting is always so hard

It is. Good thing one of my best friends is training to be a vet assistant. Studying still, but better than nothing until we can get him in to the vet. She said it didn't sound like a tumor, so I was relieved. He's been doing a lot better with his FLUTD as well. He scared me tonight a bit, as he was acting 'funny' and started attacking me when I tried to touch his stomach (which is always a sign he's feeling under the weather), but he's used his box several times today with no strain. : /

Vet assistant friend also gave me some gel to put on his boo-boo lumps because she said they sounded external. Aaaugh.