What does chest pain symbolizes?

Could be many things: Could be many things from annoying & inconsequential to very serious. Talk to your physician.

Anything: Could be a problem with skin, nerves, muscle, shoulder, lung, heart, or stomach. See your doctor for a more thorough history, physical exam and further evaluation.

Chest Pain -See Doc?: When to see a doctor? How do you know when you need medical help for chest pain? It's not always easy to tell. Helpful simple quiz: http://edition.cnn.com/HEALTH/help.at.home/chest.pain/content.html