My cavalier, Lou, who is a year and 10 months old has been very drooly recently. Last night he was making a lot of licking swallowing noises and today he had drool hanging on both sides of his mouth. He has also been known to rub his head (both sides) on teh floor. At times it is after eating at times it is not. He does not appear to have any other questionable symptoms, but I am rather worried. I guess all I can do is wait and see. Does anyone have their dogs do these things and not have SM?