Okay, I've had my Ball for about a month now and when i woke up this morning he was sitting on his basking rock, well i noticed that he started moving backwards and and convulsing different parts of his body as well as opening his mouth.

what causes a snake to do this? I'm also making a vet appointment just to make sure he is okay

btw he hasn't ate since i got him and his cause is in perfect heat and humidity.

any help would be appreciated!!

Cory