I am keeping everything about Boo's health in this thread now.
She has improved considerably! Today she was drinking from her water bottle and eating hay, as well as a little carrot.
She even squeaked a little when I opened the fridge, and when I held her. As well, her eyes have cleared up completely, and her poo is back to normal.
The one thing that we're worried about is her weight loss. She is much skinnier than her usual tubby self. In fact she is about the size that Pumkin was, not unhealthy but not extremely fat. Please comment if you see this because I am still confused about keeping everything in one thread. I have some pictures as well, but y'all will have to wait until I get photobucket up and running again.