Hi Krav, I just wanted to add to all the others advice as I have been plagued with Heart rhythm problems for a while also and in conversation with my Boss/Friend who had afib his was always brought on by certain foods. Many times, after dinner he would have an episode and usually last a few hours and subside. So anyway I also would have VT attacks myself as i discovered with having a beer or any alcohol use. So maybe start looking at diet and see if you can identify a trigger there. with my friend it seemed to be when he overate and I do know the vagus nerve we all have runs from the brain to the Heart and stomach and has a huge influence on heart rhythm, but also it goes to the stomach. I now have a transplanted heart and, in the process, the vagus nerve is cut which for me now means that when I'm in a situation that requires a faster heart rate like running my heart takes longer to realize my muscles need more blood. this is how the vagus nerve controls the heart. So I do hope you can identify what other trigger may be at play. You may want to check out this thread about someone who has AFIB tied to diet.
https://connect.mayoclinic.org/discussion/vagal-atrial-fibrillation/