Bests & Worsts Reviews from Amazon

my cat only eats fancy feast wet and dry food. He is picky so i rotate the wet food and was excited to buy the new gourmet naturals chicken pate that arrived yesterday. Freckle loved it but about 3 hours later he had loose stools and began vomiting liquid vomit and bile He is never sick.12 hours later he seems fine and ate some dry food. Now i'm afraid to feed him this food again and i have many cans and more coming of the beef. What went wrong?