So it took him a while, but Kirito finally pooped. I think it was because he was in shed. He shed perfectly fine, like a good scaley baby, and I got his feces tested. I asked them what exactly it was tested for after getting the results today, but they did tell me it came back negative. So, yay?
Also, my friends got their snakes back on Christmas. So maybe that will help. Cross my fingers.
As far as I've seen, he hasn't had any spasms in the new tank. There was one time where he got a bit tense and kind of arched up where the hide accidentally touched him after I misted inside it, but it wasn't a full spasm. Then again, I haven't messed with him since I put him in there. I've just been misting and he ate in there once already, so he's still eating great.
I'm not going to mess with him until February after I go to a breeder convention I'm planning on going to. That'll give him plenty of time to relax and maybe whatever it is will pass by then.