I think it is just early days with her, and I think time and patience will help a lot. A/D is wonderful stuff, but you do have to watch how much you give a week though, my vets recommend once a week for cats that are on the thin side, as they can get addicted to it and start to refuse anything else, and it isn't good for long term feeding. I also give cat milk to cats that need building up, and allow them more dry food than I would normally. Depending on her age, you might also be able to use kitten food on her as well.