She might play if you weren’t around. Did you find out from the vet’s what she was being fed, so you can try to keep it about the same?
They said, “Science Diet,” and that stuff is the worst they could ever give an animal. I bought Fancy Feast chicken dry and wet, and when I can afford it, I will give her Blue Buffalo.
Chicken is the easiest to digest, so that’s why I started with it. The Old Lady, IIRC, used Fancy Feast for a cat that had health problems. I’m not impressed with the other foods, so I went with what I learned...chicken is good and mild...variety is ugly and causes digestive problems.
Sometimes, a little education is dangerous... ;o]