Most vets seem to rule out liver issues when they see normal enzyme level. Problem is, those don't necessarily go up until the liver is significantly damaged. If your Yorkie isn't showing many symptoms, it could be nothing at all or MVD. It sounds like with crystals and protein intolerance, this should be taken a bit further.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |