Stitch is my 50 days old dog. She is suffering from loose motions from the last one week. I have taken her to vet three times. The vet prescribed normet syrup which didn't work. For the second time she prescribed metronidazole and perinorm, which again didn't work. I'm feeding her royal canine starters and sometimes pedigree puppy gravy. What shall I do? I'm worried. She does not have fever and she is active but her motions are too watery. Please suggest something. Thank you in advance.