I have a 7 year old calico who seems to be in wonderful health with one exception, she vommits twice to three times a week. I have had her examined by my vet and he states that she does not have any intestinal blockage or anything along those lines. I recently changed her to science diet sensitive stomach and had great results for about a month or two. Now the vomitting has started again. She has already ruined our carpets and several other pieces of furniture. My wife is at her wits end and this kitty is my baby and I dont want to get rid of her. If anyone can help or has any suggestions please let me know.