im 29 years old and for months now ive been having palpatations, at first they werent bothering me but now they are starting to really bang, i also noticed that when this happens the beat at e apex of the heart stops for a few seconds. I exercise 5 times a week 2 hour sessions. i wear a heart monitor when training and never push more than 85% of my max heart rate. sometimes when having these palpatations they come one after another and can be painful sometimes. my pulse is okay between 60-90 taken at the wrist how ever when i put the heart monitor on it always seems to go between 80-111 without exercise. been to the doctor and he said it was okay recent bloods were okay. Have you any ideas?? i dont drink caffine.