I am not sure what is going on with Gary - my 4 year old corn snake. He has always been very timid. He usually spends most of his time in his hide, and comes out occasionally to lie on his heat pad. On Sunday I went to feed him and he wouldn't take his food. He was pushing past the rat to try and get out his viv. I thought he might need to poo - which he did. After putting him back in his viv he just wouldn't settle. He still hasn't eaten and has now taken to rambling around his viv, climbing the walls, digging down through the flooring (which he has never ever done before). Not sure what is going on with him. Any suggestions?