So trying to be the rational person that I am (stop laughing) I am trying to think of other reasons that Eli would be getting short of breath. He does it when he is really active and when he cries. In fact when he cries he actually has to stop because he can't breath. Everyone notices it including his PT who has commented on this. He does almost nothing and is short of breath. But I don't want to jump to conclusions because he was short of breath before his last cardio appt and when I mentioned it he said although his heart has issues they shouldn't be causing shortness of breath yet. I know low iron can, but can anyone think of anything else.