So we're back home now. Hubby said the vet has checked everything. Listened to Bryce's heart, lungs, stomach, checked the ears, eyes, checked his legs and feet, pee, poop, everything. She couldn't find anything wrong. When she checked his legs, hubby was holding Bryce and kept on biting his hands and fingers, which is normal for him whenever he wants to go down already. Vet just prescribed him Loxicom 0.4ml 2x a day just in case he's feeling some pain.
I already fed him 10mls of critical care again. He likes it so didn't really force him to eat it, which is a good sign because in my experience they refuse it when they are sick and they love it when they're not. He ate melons again. He's also eating hay and we picked up some grass and he ate some of it.
He's perked up enough this afternoon. I put him on the loft after I fed him. He managed to get up on top of their wooden house, and now he just went down the ramp and jumped to the floor and didn't squeek, so seems like no pain when moving.
So just monitoring him for now and hopefully he'll be okay eventually. I was supposed to do a full clean of their cage today but I will just do that tomorrow so he can have a stress free rest in his cage for today.