Q. +specCpl, vomiting liquid, diarrhea, dstended abdomen, anorectic, gags and burps, lethargy
ROSS MASSIMIANO, DVM
A. Sounds like your dog have Pancreatitis. It can be an infection, some sort of metabolic disorder, or tumor. Without knowing the type of animal or anything else makes it hard to know more. Sounds like a vet have done some work for you already. I recommend food with as little fat in it as possible or even no food if that's not available, pain medication, possibly some fluids under the skin or IV and antibiotics. It can be severe. Stay in contact with your veterinarian.