please help me out..I have a 6 year old labrador and he is not eating for a week and vommoting and passing stool.His vaccinations are up to date and was dewormed in February..His stools are watery and he vomits yellow liquid..His regular vet is giving him Taxim 1g, emeset 2 ml, panvet 40mg, RL 5ooml.He is just not responding to the treatment..plz help..i m desperate