so... today I've been having pain in my chest quite frequently, and I don't know whether it is something to be concerned about or not. It's a pain where the sternum is (I think) and situated ah, between the cleavage (not that I have any lol ) ... but it is that specific area, but in the chest. The pain comes and goes, but when it is here, I can't take a deep breath because the pain gets worse when my lungs are nearly full, and then it involves the bottom of the lungs. It varies as to how long the pain lasts, but usually several minutes, probably less than five, and has come when I am resting or doing a light activity. My heartbeat during the pain stays the same as before it, and is perfectly regular.

I'm 20 and though I'm not exactly active, I'm not totally sedentary either, and I have a fairly healthy lifestyle... I don't smoke and I rarely drink. This pain isn't new to me however, because I have had it in the past when I have suddenly done strenuous activity without preparation... I've had it for years. It's just this is the first time I can remember having it on and off throughout the day. I'm not sure if it is some kind of angina, but all the sites I've read just say angina involves 'chest pain' and don't specify where.

Does anybody have any idea what this could be, angina or otherwise? Thanks .