Anna, we don't worry about her, she is pretty in good health, not chubby or too skinny, she's just right at average. Now, for Rosie, I have noticed she has been sleeping a lot during the day.. although I try to keep her up since she needs some moviation to play or have her go outside. Once she has slept in my bed from 8am til' 3pm, now that's nuts! I think it's just her being lazyiness..