My kingsnake has dry skin/scales. I don't know what's up with him. He has a clean tank, and he just shed maybe a week ago. I come to get him water and I see his skin seems really messed up. He looks really dull and he isn't smooth. If I look closely at his scales he has what looks like wrinkles all over him. He hasn't eaten in a while and I'm worried as hell. I've thought that maybe it could be scale rot, but I don't let him live in filth. So I ruled that out. Maybe I should raise the humidity?

Any suggestions of what this could be and what to do would be fantastic. Thanks.