I'm taking 12.5 mg Coreg 2xs a day after someone with a cold stethoscope found what appears to be a 4.3 ascending aortic aneurysm developing, I'm still playing ice hockey 2-3 times a week....and although my docs have said "Go skate your heart out and stop freaking my boy"...I'm STILL a bit unnerved about skating my butt off during shift after shift...and having my heart beating no faster than if I was reading a very dull book. Is my concern warranted? I mean I don't mind the extra ice time...but am I damaging anything?