My kitty is almost 10 months old and he’s had some digestive issues since he was around 4 months old. Trying to find the cause is driving me bonkers, so I thought I’d see if anyone over here has any other clues. Long story long, he had roundworms when we got him as a rescue at 8 weeks old. 6 different deworming treatments later, all good, with 2 regular fecal tests done as follow-ups - the last one in early May - all clear. He used to eat Hill’s Healthy Advantage canned when we first got him, his stools were perfect, but then, around 4 months old, they went a little mush. Not much, but enough to notice that they weren’t ‘perfect’ anymore. After looking up Hill’s ingredients, we switched him to Whole Earth Farms chicken canned food (he only eats wet food, no dry at all). He was on WEF for a month, until the mush came back. Then, we switched him to Merrick’s Limited Ingredient Diet canned chicken, the ingredients seemed better. That was great for about 2 months, but then, same thing happened - stools start off nice, but get mushy towards the end. We then switched him to Merrick’s LID turkey formula, new protein test. That didn’t work out either, a terrible diarrhea started that has since been ongoing pretty much on a daily basis now. This new diarrhea condition started about 3 weeks ago I'd say. We then decided to try out Weruva’s Paw Lickin’ Chicken formula, read great reviews about it. He really loved it, but his stools were terrible, even worse than on Merrick! Nasty colour and never properly formed. This lasted for about a week, with explosive-type diarrhea mixed in there. So… we decided to try out Merrick’s LID duck formula as a final test, thinking maybe he was intolerant to chicken? I don't know, maybe it’s too soon to tell, it’s only been 10 days or so, but so far, same thing. The morning stool is always nearly perfect or at least well-formed, but the other ones throughout the day are cow patties bordering on peanut butter… So, we gave in and we decided to go see our vet. Long story long again, the vet said that naturally trying all these different foods - even if they were all wet foods - wasn’t helping his gut. She suggested a week of Metronidazole to see whether things would settle and said that if by any chance it was Giardia, the dose would definitely settle that too. A week of Metronidazole did absolutely nothing for him. If anything, his stools got even worse maybe. But, I'm guessing he didn't have Giardia at least? I had a follow-up call with her and these are the 3 options she suggested: 1) Switching his food to Rayne’s rabbit formula to see whether it’s a protein issue. I don’t like that it contains potatoes, potato starch, potato protein and cassia gum (Weruva had a lot of potato starch and I wonder if that upset his stomach), but I guess I could try it out for a short period of time to rule out that it’s definitely an issue related to food? 2) Running a PCR fecal test to look at his DNA and see whether he has T. Foetus. One of things that makes me think he might have this is that a) his stools smell pretty nasty and b) he has been having a higher frequency of stools as well, he used to go twice a day, now it’s 3 times a day. 3) Testing to see if he has FIV... I heard that he needs to be off of antibiotics for at least 5-7 days before doing the PCR test, but does anyone know if he needs to be off of probiotics as well (I’m giving him ProGut powder on a daily basis)? Either way, I have to wait at least a week before getting this test done and the results won’t be back for a few days, so in the meantime, I’m at lost as to whether I should try out another type of food or just try and see if he adapts to the duck formula with some time and patience… He is otherwise in a really good mood, playful as hell and has a large appetite! Thoughts? And thanks in advance!