I am 24 male 5'10 about 200lbs. I had kawasaki syndrome when I was 4-8 yrs old. So according to my doctor these heart palps are due to "anxiety". It all started when I was drinking a lot,drinking energy drinks a lot, smoked for about ten years, and taking supplements. I first started to notice my arms and legs would fall asleep and that I would get a heart palp here and there. But I thought no big deal as every time I get the flu since i can remember i would have heart palps with sob. The thing is though i was sick with the flu then bam i was in the ER with a run of palps with sob they didnt stop till i was gave a lowpressor (betablocker .25mg) Then about a week later I started have longer lasting pauses with sob and slight arm and chest pains at random with or without activity. My heart would start to beat fast then slow and hard or the other way around. This all happened over a year and a half ago. I went back to the doctors and have had a nuclear stress test and echo. And after that over the year I have had another echo, countless ekgs, x-rays, a holter, event moniter, and an abdonimal CT scan. The only thing they have seen is some regular nothing to worry about palps. I get that though I have had those when i get sick and they dont worry me. The thing that worries me is I get a long pause sob, i cant breath, it stops because there is no blood flow to my lungs due to the pause or prolonged palp. and that does scare me and gives me high anxiety. so I will admit i do have anxiety but its due to this.