please don't take this the wrong way, but it might be the food you are feeding. Ol'Roy is not a great food and chances are she was on a higher quality food and this is her body's way of reacting to this change. You should contact the breeder and find out what she was eating or switch her to a high quality food if possible. Something like Wellness or Solid Gold, Merrick, Chicken Soup.. theses are all great foods. If the diarrhea continues too much longer you might want to take her to the vet and make sure she hasn't gotten dehydrated. Good luck