I think Im just being a worried moma but Cooper has a lump on his shoulder and on his neck that wasnt there before. They seem to be getting smaller. His next vet visit is the 14th should I take him in Sooner? What could this possibly be. And Is it normal for chihuahuas to have a little bit of their tounge (sp) :lol: stick out of their mouth when they are sleeping, is that a sign of anything?