What could these recurring chest pains be?

Ok so this morning in the middle of gym class my chest started to hurt and it's been hurting pretty much since then, it hurts...

I set my New Years resolution to loose weight & gain shape, however when I finished doing my sit ups I felt a horrible sort o...

I have had super sharp pains in my chest on the left side..it mostly comes when I try and lay down. Does anybody know what th...

About a week ago I got my nose pierced and I freaked out about it later that day,(im very paranoid) later when I took the pie...

I have been getting pains in my chest which leads to pains in my left shoulder and a tingly feeling in my left arm and hand. ...

I have been having fullness in my chest. There is no pain just the feeling of being full and when I eat it feels worse

i wake up at night with a bad cough and cough up blood and green stuff and i have a pain under my breast bone and i always fe...

I have really bad chest pains, I've had them for like 1/2 an hour :( Is there anything I could do, or am gonna die :( Sorry, ...

I keep getting really sharp chest pains and then find it hardish to breathe. Why could this be?? What should I do?? Thank ...

Alright well for a couple weeks, maybe 2 or 3 weeks, I've had this pain in my chest on the left side. I would say it was my h...