My husband brought home a little garter snake a few months ago that was injured. I decided to keep him over the winter and let him heal up. Well needless to say my kids love him and I really like him as well. He has shed his skin once eats nightcrawlers twice a week and seems happy. Lately I have been worried about him for the last week he hasnt really wanted to eat and kind of just lays around (I know they do that) just seems weird. Is he sick??? Any ideas what it could be???