I just had a stress test and ecco a couple of days ago and all appears normal, however, I have a sharp pain with possible skipped beat when my heart goes at approx 126 bpm. Unfortunately, this did not happen when I had my stress test done. what could it be. I m on no medication except for Vitamin D 50,000 iu for the past 4 weeks, same time these sharp pains began. Coinsidence?