I’m not a vet or professional, but it sounds like IBD or something like that to me. If it were my dog I would find a good limited ingredient diet with a protein other than chicken or even other than any poultry. I would give the dog a good probiotic/enzyme supplement along with the diet. This site has a list of hypoallergenic foods. I’d look for the one with the lowest to most moderate fat percentage. Also, canned foods are good or even freeze dried (like The Honest Kitchen) if you want to go that route….or to add to the kibble. There are also other people on this site with way more knowledge than me that I’m sure will respond soon to help you, so please keep checking back.
