9 month old pup has gone from not eating to vomiting when he does
I recently posed a question about my puppy not eating for 3-4 days in a row; talked with the vet. Blood work and stool spec OK. Now he is either throwing up bile or vomits on the day he eats. Back to the Vet; barium Xray, no findings. Breeder suggested it might be a liver shunt?? Don't know what to do, puppy is losing weight and has gone from 22 pounds to 17.5 lbs. in just over 4 weeks. Is on Antibiotics and Prednisone, if this fails what next??