my fellow CFers. I have been suffering with pressure in my left lung since tues. It comes and goes...every few minutes. I also had a fast heart beat (not terrible) around 95 beats per minute. So finally last night I went into the ER they gave me every test for my heart and said all was good. They sent me away with a script for nexium. I have never taken nexium before. I thought it was only for heartburn (which I dont have). So my lungs are infected but they always are..my white blood count was high. Anyway, does anyone have experience with pressure in their lungs? It feels like it is on my heart but again they told me my heart is good. I am baffled. This is a new experience for me. I have had experiences in the past where I had a stabbing pain and had infection but never a feeling like this. Can anyone give me advice?