Thanks guys!
It's really good to hear such positive opinions from those who know what they're talking about.
I'm a very confident person in my professional and personal life but this thing has got me rattled. Something I've always taken for granted and never paused to give thought to was the muscle constantly beating in my chest. Not any more. Since my heart attack I'm aware of every flutter in my chest and feel like I'm living on a knife edge.
I appreciate the good thoughts and wishes.