Thanks for the suggestion. I did look at the cup size of the portion I've been feeding her and its actually half a cup exactly so I'm going to reduce that a little. She sleeps all day, doesn't have alot of room to run around and is overweight so I feel very guilty that I'm not doing enough for her. I'm away alot so there isn't alot of stimulation for her. I think its a mixture of things but I also think it might help to change her food (again!). I hate doing that.