This post is really just an observation which may, or may not, be of interest and I wonder what experiences others have.
My PAF was almost certainly caused by me pushing myself too hard during a cycling event whilst suffering from a viral infection. I am currently doing the weekly INR thing in order to get my Warfarin level correct. I am not actually taking any prescribed medication for the PAF at the moment, I do have some Bisoprolol as a "pill in your" pocket but haven't used it. What I do take is Hawthorn Berry herbal supplement and I would say that circumstantial evidence suggests that this is helping reduce the number of PAF episodes that I experience.
Yesterday lunch time AF tripped in for no apparent reason. Initially my RHR went up to around 120bpm (my normal RHR is around 50-55) and then settled to around 100bpm with arythmia. It stayed that way for the rest of yesterday and was still much the same this morning.
I have a spinning class on a Wednesday morning and decided that I would go, but take things very easy. I use a HRM and monitored this finding that very gentle spinning was giving around 130bpm, a little bit of effort was putting me up to just over 150bpm which was well beyond what it should have been for that level of effort. However, by easing back I could bring the rate back down to 120-130, still too high but not enough to fret about.
With just a few minutes of the class remaining my HR simply dropped from 130bpm to 95bpm with no change in effort level. 95bpm was pretty much the right sort of level for the effort I was putting in at that time and so I stuck a couple of fingers against my neck to check pulse and sure enough, back to normal with no arythmia!
This isn't the first time that I've noticed this happen and so it would seem that, for me, excercise can just as easily switch off my AF as it can trigger it.