I tried searching for quite awhile but, I couldn't find anything.
Back in Highschool, I had a problem my senior year. I didn't pass my physical for sports. I had a severe heart palpitation and had to be monitored by a machine for a month.
I used a machine that said I was around 6% body fat, weight was 150 lbs at the time. I would lose around 15lbs in 2 weeks of fat from 2 day practices in the summer. I would weigh around 135-140 after these.
My abs were not visible even though I had extremely low body fat, and still looked like they had fat on them.
I am starting to believe that because I didn't eat correctly(less than 500 cal a day). That it may of caused this side effect. Now, that I am 25 weighing 190lbs with about 15-20% body fat, these palpitations are pretty much gone.
I also used to get a extremely sharp pain below my heart, it felt like a knife stabbing me for about a minute or so. I couldn't breath very well if at all during this time. This is also completely gone.
I have been working out off and on for some time, lately not so much. I feel that perhaps I was putting my body through so much stress with being underweight with low body fat and not eating correctly. That, this may have triggered these symptoms. Any input would be appreciated.