I have a female western hognose that I bought back in July as a hatchling. She has refused a mouse fuzzy for the past 3 weeks and had seemed fine up until today when I checked on her. I found her lying upside down and not moving. I thought she was playing dead until I realized she had not been disturbed all day and had no reason to do so. When I picked her up she was not moving other than occasionally flicking her tongue and I could hardly see her body moving when she breathed. Any ideas what might be wrong with her?