Hi all. My kitty has not eaten normally since 4-10. Hes been vomiting everything he eats. Then eventually he stopped eating since 4-13. I've forced fed him and he threw it up. I havent fed him since 4-14 hes eaten about 5-8 niblets of dry food on his own which he threw up also. I noticed that he when he's about to throw up he gags and then goes. Well my question is he hasn't thrown up of course because he has not ate anything, but he still gags and what comes out is pretty much saliva or saliva, but in some sort of foam. Does anyone know what that is.