I'm having a pain in my chest, around the left side/center area. It changes from a dull to sharp pain and can last from up to 30 seconds to 30 minutes. When this happen I begin to feel very weak all over. My left arm once in awhile will begin to get a dull cold pain, around my armpit. Fallowed by my left hand feeling a bit tingly. The pain in my chest switches from near the center of my chest to the bottom rib on my left side. When the pain happens it feels cold in the area after. I do smoke.