My Dad just told me he has sore muscles in his heart area for the past four days....it goes away when he lays down. 2 months ago he went in for a heart stint and proceeded to have multiple strokes and the only effect was a slight drooping on one side of his mouth. He has been doing his cardio rehab 3 times a week and has felt great until now......he was brought up as a Christian Scientist and spending time in the hospital is very difficult for him......any ideas of what this muscle soreness......