“Mum” is the word. :-) Hope all is well and you never need a quadruple bypass. ;-)
If there was something wrong with my heart, I would have passed out from 150 sit ups, 130 push ups, shuttle sprints and then the 400 round house kicks, 400 axe kicks and 400 snap kicks at my typical Tae Kwon Do workout 3 times a week.