Actually, we kind of panicked and took him to the vet last night bc along with his diarrhea, he was also lethargic so we brought him in to rule out Parvo and they were able to rule that out thankfully, and they recommended we still have to bring him back to do further tests. We brought him back home and ever since he's been back to his normal happy self, but has still been having loose stools. So we just don't know what our next move should be, aside from taking him to the vet for further tests. They gave us liquid meds for the diarrhea that have helped some, along with a few cans of Hill's prescription diet i/d to feed him till his tummy feels better...my main question is, should we give nutro a chance once he is done with the hill's prescription food? or switch him to something else altogether?