I agree with the scope idea. The vet can take biopsies that way also. But you can miss things with the scope, so some elect to just open them up.
Could check B12 and folate. When these are off it can indicate small intestinal bacterial overgrowth.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |