I can tell that she's giving up. The was looking good a week ago, started looking sick about 3 days ago and today she just looks very bad. Just look at the first pictures on this thread, those were taken just a minute before posting them 2 days ago and she didn't look like today at all. It's very sad because she is so special and everybody loves her. I'm just taking this as an experience -a really bad one- but still something I will learn from.When they hold the lower half of the belly in like that it's usually not good news....sorry to have to tell you that. However, not being a vet, I can't give you a reason why she might be doing it.