I experienced some very strong pains tonight in the middle of my chest behind my left breast. The shooting pains were followed by a tightening sensation along my left arm to my finger tips and also to my left shoulder and lower jaw. My fingertips on 2 fingers on my left hand became slightly numb/tingly and have remained that way now since the chest pain occurred 20 minutes ago. I am a 38 year old female who doesn't smoke and is not on the pill. However, I am currently on my monthly menstruation cycle and have been clotting more than normal. Should I be concerned about the chest pain??