I encourage you to keep asking questions; I'm sure you will make the right decision. To clarify, I have had atrial fibrillation since 2019 (a not uncommon problem for those of us with HCM) and there's no evidence Camzyos has worsened or improved my bouts with afib. After learning all that we can, it's difficult to know what's causing what at times. I wish you all the best.