I wonder if she would like a nice drink of water, or if that would disturb her too much. Well, she's making progress. I am not experienced enough to advise you about when you need to start worrying (more). I think, with only two left, I would just see what has happened by morning. Have you talked to the vet? I was always afraid when Cherry had the retained slug, that if I talked to the vet, I might end up signing her up for surgery or something, when she didn't really need it. Not like my vet has ever rushed me into anything, take the retained spectacle for instance, but it still made me nervous. I wish we would have talked about all the "what ifs" before they actually happened.