im having a stabbing pain behind my left breast, but when I touch it, it hurts worse. I just had a mole removed under my left breast, but it turned out to be benign. That hurts there as well. I was told by my doc that if it hurts when I stab it with my finger that it is not a heart attack, but this pain has been off and on for 3 days. I have been trying to correct my poor posture by sitting up straighter. Thanks!, p.s. I am a 46 year old male.