question: I was just told by my cardiologist that the right side of my heart is enlarged and the pressure is too high.  How serious is this?  I come from a family with terrible heart history.  My father died at 40, my mother at 56, and my brother at 36 and our son has had two heart attacks, one at 26 and the other at 42.  He has had stents in between the two heart attacks.  I am 69.  Not overweight at all, exercise at our wellness center we try for five times a week but at least 3.  I have been getting short of breath on steps. We also walk a lot.  I had quadruple bypass 13 years ago.   I am just wondering how serious this is.  I guess it kind of surprised me and I didnt ask any questions.  They did a test this week to see if I have any blood clots in my lungs, but dont have results of that yet.