Might be a bacterial overgrowth or another pathogen that uses some of the ingridients. I had/have this problem. If you didnt already you might wanna check for.
Functional doc say dont use Bs until you solve the gut. Check also ingridients in supplements some are not ok for SIBO - bacterial overgrowth.
If its like that you already have a clue on how to target treatment. Using supplements without knowing the real cause of AF isnt the cure. For some it alleviates some symptoms which is good but not enough.