Just a thought : when you were first admitted into the hospital, did you tell the docs that you were rearing scorpions and tarantulas? I'm just wondering whether you may have an allergic reaction or something from coming into contact with them. Only just realized what those text in your signature file is.

Maybe also try sleeping early for a start while you're still looking for an answer. And in a completely dark room. The human body does physical repair at 10 pm - 2 am and psychological repair at 2 am - 6 am. At least until you're feeling a lot better.

The thing about allergies is that it can developed over prolonged exposure. I'm actually not thinking about the bites but more of the stuff that it's in your pets container. Can you keep your pets outside of your room rather than where you're sleeping?

Also, I see from your blog that the skin of your fingers are peeling off. Are you dehydrated i.e. lack of water? I know it's a far-fetch theory but you never know and you have nothing to lose since doctors haven't found out what's wrong.