My kitten is now 11 months old. About a month ago he abruptly started rejecting his favourite food - Wainwright’s Tuna with Veg. For the longest time this is ALL he would eat. I put it down to him being bored of the same thing, and bought some other brands. Initially he ate them, but has quickly come to reject these ones too. I have tried James Wellbeloved Turkey in Gravy and Pets at Home Seriously Good Bistro Chicken & Tuna variety. Whilst trying out different foods with him, he ended up having several bouts of diarrhea, I assume because we switched the foods too quickly (which I did not realise was a thing). He seemed to favour the James Wellbeloved Turkey food, so we tried mixing some of that with the Wainwright’s to gradually make him familiar with it. Unfortunately, he now refuses to eat that one too. I’m at the point where he is rejecting all wet food that I offer him. Thankfully, he does eat fresh white fish, which I am buying especially to help settle his stomach. On the subject of dry food - He has an obsession with Lily’s Kitchen chicken biscuits. We have always given these to him as more of a treat, because they are quite rich. We used to give him a bowl of these as a late night snack, which he loved. But decided to stop doing so and just have given them as treats for good behaviour. He also has Wainwright’s biscuits to nibble throughout the day. We went to the vet yesterday because of all this and they gave him a check up, apparently he is in good health. We didn’t opt for a blood test because it was very expensive and he seems fine. We also didn’t choose to get medication for his diarrhea, again because it was very costly. After going to the vets we decided that we’ll try to just give him Lily’s biscuits as a meal, since this is now the only thing he will eat (for a few days we tried to sprinkle some on top of his wet food, which did work initially, but then eventually he just rejected the food). So yesterday he just had Lily’s to eat, and his Wainwright’s biscuits. Today I’ve found that he’s had several bouts of explosive diarrhea though the night... His litter box was a mess. (He is mostly indoor, he’s allowed outdoors during the day but we keep him in at night). I have to conclude that Lily’s biscuits are ALSO upsetting his stomach. I’m at a loss now. He is rejecting all the food I am offering (except Wainwright’s biscuits, which is kind of a snack for him) and most food is seeming to upset his stomach. I can’t afford to only give him fresh fish, and anyway this wouldn’t be good for his health. I am really stuck! It feels like there is something wrong with his health. Has anyone had a similar experience, and if so what was the solution? Any advice would be hugely appreciated!