Occasional pain and icy feeling, usually in the lower right side of the left section of chest?

I am of 15 years of age, turning 16 this year and my BMI is about 19.

I seem to be experiencing slight pains on the left side of my chest occasionally, and sometimes I get an icy feeling as well. Most of the time the pain is too slight or short in duration to really accurately tell whether it's a sharp pain or some sort of pressure pain. Sometimes it occurs when I move my arm, when I sneeze, or when I cough, but not during physical exertion.

Several possibilities on what this may be:

A week ago, I had to toss a rather heavy bag at an awkward angle, but the area started hurting immediately after that, so I may have torn or pulled something. I also may have pulled my diaphragm since I tend to force-breath in a lot when I get a stuffy nose. I have shown signs of an anxiety disorder before as well.

I'm worried it might be something rather serious.

I'd like your views on this. Please be more detailed instead of the standard slew of "See your doctor." Thanks in advance.

I don't k now if it's just me, but my heart also seems to be beating slightly faster than normal. I've heard of a health problem involving a bone in the area that's fairly common in males my age. Does anyone have information on that?

It sounds like you may have a problem with your one of your major organs. It may be a broken rib, or just a pulled muscle. I am going to suggest you see your doctor as he/she will be able to give you an examination to make sure you are alright.

Pleuritic chest pain. It is caused usually by spontaneous pneumothorax. A microscopic sac of your lung popping and releasing air into your pleural space between your lung and visceral pleura. Spontaneous Pneumos usually happen from intense, brief periods of exercise that you are not used to and coughing is a big red flag. If you are too skinny, fatten up. If you don't exercise regularly, start. Don't push your body unreasonably just to impress people. Stop smoking a lot if you do. Take up a martial art. Get your lungs more flexible.

Before you do anything that anyone gives you advise for, go see your doctor. He'll give you the best advise and take it seriously.