Hi Jenrev
You are SO right it does take a lot of mental stamina to cope with A-Fib.
It is so unpredictable and that to me is the worst part.
There is no rhyme or reason to it.
Being a very disciplined person ( boxing and do MMA) I always attack something with a strategy or game plan.
With A-Fib there is NO strategy that works.
The A-fib does what it does when it wants.
Like a little man living in my chest that has its own mind.
It is so frustrating.
And as you touched on, the mental part is the worst.
I find no one seems to understand.
Its really messed up my life.
Best of luck to you I hope everything works out well for you.