I've had 5 cardioversions. It's no big deal. You will have a general anesthetic, Propafol, be asleep for a very short time while they apply a shock to your heart to get it back into sinus rhythm. After 30 minutes' recovery, you can go home. If the afib continues to recur, you might have to have a cardiac ablation, of which I've had two. Again, no big deal, but it's a more complex procedure, taking 4-6 hours. Don't worry. afib is very common. Good luck! BTW, I'm 77 and have had afib for about 25 years on and off.