I have chest heaviness, sob and heart pounding,upon exertion and occasional palpitations. I am a former smoker, quit in 1998, smoked 1 pack or more per day for 20 years. I am now 55. In the last few years, I suffered severe malnutrition due to undiagnosed celiac, and was in ICU due to early organ failure. Also, I have been treated for hep C, took 3 years of interferon/ribavirin, then Incivic to finally cure it.