Hi I am a 43 yr old female smoker and have been experiencing pains under my Left breast.  Not all the time, BUT does stop me in my tracks.  Lasts less than a minute?.  Think maybe stress, But heart problems run in my family and a tad concerned.  Any ideas???
I need to know whether these pains are related to exertion. Do you have any hypertension or diabetes? Any other chronic disease? If these pains just come and goes on its own they must probably be due to stress, or musculoskeletal in origin. Just visit you general physician for detailed history and examination. I do not think you need to worry at this point of time