The day after we picked up our pup we took her to the vet for a health exam. She had completed her worming and the vet said she was healthy. He looked at a fecal sample under the microscope and said she was worm free. Since the vet visit she has had diarrhea for 2 days. We tried feeding rice but she wouldn't eat it. So we tried some pumpkin mixed in the dog food and she loved it. Her stools are now just loose and form a little puddle. Her appetite is normal and she plays like nothing is wrong. Should we be worried? Or give it some time and see if it firms up?