Thanks, Merc!! He has a serious heart murmur; he will be rechecked in a couple of weeks. I have authorized an echocardiogram if the level of the murmur hasn't changed at that time. That would give the vet a clear view of whether it's a psysiological murmur or a defect. I am hoping for the best for him, he is my baby as much as my other dogs are. <3