I adopted a kitten who has healthy at her last owner. We just got her yesterday and she has diarrhea and is throwing up. We changed her food and made it lighter. We want to the vet and they said just change her food but that didn't work. It isn't the first time we get a cat and this happend. What should I do? Did something similar happen to you and if yes what did you do? My mom wants to put her up for adoption again because she can't deal "with her vomiting." I love the cat a lot and I want to help her. Any ideas?