my dog is very sick we have been to three vets and they cant figure out whats wrong with him. he is a 12 week old golden retriver and we are first time dog owners. we got he and 5 weeks is what the breeder said and we later found out that he was just over 3 weeks almost 4 weeks old. he cant keep down foods and has dyarrhea all the time. the one vet thinks he is allergic to wheat foods. so we are now on that special diet. he doesnt eat a lot at all.