Is anyone suffering from AFib ?
The causes of AFib in the elderly is much different than that of a person your age. Over the years, the heart(like all muscles) can weaken. A weakened heart often can’t tolerate AFib. On the other hand, your heart is likely structurally strong can take the AFib when it occurs.
A heart cath looks at the arteries of the heart. Narrowings of these arteries occurs over decades.
A good friend of mine developed intermittent AFib in his mid 20’s. Healthy as a horse. Now, he works as a firefighter/paramedic, one of the most physical jobs you can find.
Get regular check-ups with your doctor. You’ve got an uncommon problem that doesn’t necessarily lead to serious problems.