I have a 2 1/2 yr old male Blenheim. I did not know anything about CM/SM until a few days ago. My dog does not have any pain but he scratches his ear from time to time, rub his face down the rug sometimes so when I read the article about CM/SM I am so worried. Should be checked nw or wait until he has pain? I live in Orange County, Southern California. Do you know of any good vet here?