question: I am a 54 year old woman.  I have COPD and take medications for it.  During the last few weeks, I have developed a warm feeling in the upper left hand side of my chest.  No Pain. Just a warm feeling. Allmost as if I had rubbed Ben-Gay on it.  I normally have low blood pressure - but it was 140 over 80 when I checked.  I am also getting headaches these past few weeks.  Should I be concerned?