I am a healthy 25 year old who exercises regularly. For three days now I have had some sharp chest pain that comes and goes. It radiates into my neck sometimes and I feel dizzy. At work today, I felt like I was going to faint from dizziness. It hurts particularly when I breathe in, but when I lift my arms above my head and stretch in certain positions it seems to stop. I recently broke my foot, and have been on crutches, and I am wondering if this pain could be caused by the new and much more frequent use of the muscle groups in my upper body. My family also has a history of upper g.I. Issues (reflux, heartburn) and though I have had symptoms for that, this feels different. I work in a hospital, and my pulse is 60, my blood pressure is 108/65 and they hooked me up to a heart monitor and the rhythm appears completely normal. This pain is so strange. It makes me feel at times like someone is sitting on my chest, but at the same time it doesn't feel like it is coming from my lungs somehow. It is very sharp at times and initially began as only discomfort about two days ago. It almost feels like it is at the base of my throat sometimes. Ibuprofen seems to lessen it, and I have been taking samples of prevacid for the reflux, though I only started it today, so there is no way to tell if that is the issue at all. I guess my question is, is it normal to get that sort of pain from overuse of muscles? I have gone into the e.R. With chest pain before, just last november, and they said it could be anxiety because I was going through a lot at the time, but I am not anxious at all unless I think too much about the chest pain! I don't know what the problem is. If I was having a heart attack, would it show up on a heart monitor?