Our 6 1/2 week BO as of yesterday has been spotted sleeping most of the time. Just 2 days ago she was fine. She sleeps standing up for the most part or at least that is what we're seeing. She has puffed herself out to look like a big ball and is often twitching her head just the slightest. Any ideas what is going on? We have separated her from the group but what else should we do? Thanks for any help!