my dog had similar symptoms and was rushed to the hospital for vomiting blood; she had very bloated tummy and was discolored gray or brownish; after researching and asking questions; i switched her diet to the honest kitchen which is a human grade food and added digestive enzymes and probiotic and milk thistle drops which changed her completely; now she has pinkish belly not swollen at all; the probiotic will heal her tummy and the milk thistle will heal her liver; you should look into it and good luck!
__________________ Ava's mom |