Ive experienced palpitations that i know of 4 times in my life, first time as a kid when i was 8-10 years Old exercising i was a worried kid to mention on that, then i havent felt it since i was 26 when i woke up one night with racing heart for about 15-20 minutes and panicking, the third time happend 6 months after on a sailboat and it kept happening for 15-20min to last time was 2 years ago i did a wierd movement and my heart raced, during the adult time at the 2 latent episodes i was hungover with minimum sleep, but im worried since other people can do it but when i do the same thing i get palpitations? Do i have a heart conditon? Im scared shitless atm not knowing if i stouts exercise or not..Been doing 24h ecg and nothing irreguelar.. should i still be worried? Will i have cardiac arrest? Pls help im a guy 29 y/o