I've been not smoking for about 10 days now. I also had chest pains as you do like a burning sensation. I also went to an ER and they ran EKG, Blood Work and Xray and said it wasnt a heart attack (Thank God). Got me doctor to set me up with a Stress test for my heart and results came back as working normal. Not sure if the chest pain is just part of the detoxing phase but it seems that way.. How are you feeling now?