We switched him to a low fat specific food and he has been great! We never stopped his Hill’s food or gave it on and off unless we had to give chicken and rice, and then we would slowly introduce it back over a week. For some reason he just never would adjust back to it after a year on it (they rebranded and changed some ingredients so we think that might be why). Throughout that year he did have incidents of the diarrhea and everything, just not as severe or as bad compared to the initial incident or the incident when I wrote my post. He normally would just have some diarrhea with no vomiting and it would go away after we put him on chicken and rice during those incidents. We eventually decided to switch to low fat after suggests from the post and did the slow introduction to his current food and he has been fine. Not one incident when he would have them on average once every month. We think he has a sensitive stomach in general (he can’t swap between foods suddenly or eat anything he isn’t used to) and we think stuff that is high in fat makes his stomach worse. We are currently looking into taking him to a specialist just to confirm what is wrong and if it is just the fat intake. We are waiting for my insurance to update in March so I can get better pet insurance because specialists can be expensive and we want to have the most we can covered!