I have been having events since March 2017. With the 1st 2 which was a couple of hours difference. I felt all my energy drain out of my body, I was unable to move, got sweaty, blood pressure went up. The 2nd once I was in the bathroom taking a bowel movement and it happened again. The 2nd serries (2) came 2 months later and what I noticed differently this time I was very tired that day having a hard time staying awake and I was doing my weekly shopping. The 3rd group (2 again) where several weeks apart, what I noticed this time that was different was it started with stomach pains (I have Barretts disease) and then I had the attack, went to the bathroom when I was able to move, the bowel movement was very yellow and stingy. With each attack I notice more things that I didn t notice from the beginning and each attack still has the same energy drain as before. I have notified my heart doc and the 1st time they ran test and everything was fine, my my internist and my respiratory NP think it has something to do with the heart, but when we do an EKG which is days later nothing shows.