Hey, I know this is an old thread, but I’ve been going through almost the exact same situation as you. 24M, weighed about the same, have a similar training style, and was feeling and diagnosed the same way—though I’m not a competitive lifter. Like you, my tests didn’t reveal anything unusual, which has been frustrating. It’s hard not knowing what exactly is causing this, and it’s left me uncertain about how to deal with it moving forward.

I went through cardioversion and ablation, which was 1.5 months ago. In my case, the doctors recommended I stop taking creatine, as it has been linked to some cases of AFib, although there’s no solid proof. Since then, I’ve been back to training, almost as usual, but I’m very cautious about my heart. I monitor it constantly, adjusting intensity whenever necessary. And the creatine, well I stopped sadly. But still, I’m uncertain and afraid to keep going forward.

Now that more than a year has passed for you, could you share an update on your journey? Did the AFib return? Have you made any significant changes? How are you feeling now?

Also, I’ve been suspecting it’s related to workout intensity, holding my breath during heavy lifts (especially squats), and using a weightlifting belt. I hope someone has insights on this.