Thanks everyone for there input and I will get a second opinion and ultrasound would make the best diagnostic. This is really spooky but I was at a agility trial all weekend and I meet a friend who lost his Dob to heart failure during the week, the only symtoms he had was a little coughing once in a while, he was only 4. So that made that scared me, I will get it check by a specialist. My boy is only 2 and I want to keep him for a long time.