Hello, I have a dull ache in my upper chest. This discomfort feels like after I have been coughing a lot. I had a triple bi-pass in 20013, my lab work is good with a cholesterol at 137. When I walk up a hill I get no chest pain, and actually feel better. I saw my Cardiologist yesterday, and he has me set to do an echo and a nuclear stress test. But, I am curious what it can be.