I have had a stress test to check my heart and another test that takes pictures before and after the test. The doctor said everything was ok. I also wore a heart monitor for 4 weeks with a couple of events recorded. The problem before the test was, my heart was pounding out of my chest when I would walk fast. Not every time but enough for me to worry [about a week and a half]. Now I m back on night shift and my heart felt like it was skipping a beat when I went to bed. My question is, should I go back to the doctor or just chalk it up to fatigue?