Everyone swears by one or two key triggers. You'd be appalled to find that a great many find their heart rate climbing once they recline in bed for the night. Imagine what that means for getting to sleep easily. My sister-in-law has that problem. Now, to go to the other extreme, in bed was where I found respite. It worked like this: I might have PACs or AF throughout the day, sometimes with a cranky heart until bed-time. I'd get into bed, have that first zone-out where many of us turn on our sides, and I'd notice, without fail !!!, that my heart had entered NSR (normal sinus rhythm), and I was able to rest blissfully. I'd awaken to find my Galaxy watch reading out an HR of 55, sometimes less.

So, it's all over the place. When I was heavier than I wanted to be, I found that bending over to tie my shoes was a chore, and I had to hold my breath due to visceral fat. It would often trigger AF. Belching. It happened frequently after eating, and that would trigger AF often....too often. Upset stomach or acid reflux irritates the aesophagus, which runs right along the Vagus nerve. That will trigger AF in a great many. But, so will low potassium, or low magnesium. The latter is a distinct problem for many who don't each leafy greens or who don't supplement with magnesium salts (malate, bis-glycinate, taurate, citrate, etc...)

I also found that I had to pace for long periods while watching TV after supper. My wife knew I was in AF when I arose from the couch and began to walk around the house. It was a fact of life for us.

I don't know if this helps you much, but the fact is that each of us struggles with the disordered heart, and each has a unique journey. In the end, if people will listen, I tell them to get relief from an electrophysiologist highly skilled and experienced in catheter ablations. Almost 60% of all AF comes from AV node re-entrant foci somewhere around and in the left atrium. That's an electrical problem, and takes an electrician's fix to get rid of the undesired cardiac behaviours and the almost inevitable subsequent problems with heart health.