It's my daughter's yorkie and she lives in another province from where I live. He has had bloodwork done but I'm not sure that they have done anything else. They just give him the meds and send him on his way until the next time. I think it's time for her to change vets. According to the video this apparently is more common than not in yorkies and other terrier breeds. Thank heavens my little guy is 5 1/2 years old and is 5 lbs. We walk at least 3-4 miles each day and the only issue I have with him is dental, even though I brush his teeth on a daily basis. So far he has had to have 5 teeth extracted