@normanchester
Never had the t e e procedure and really don' t know what it is.

Cardiocoversion. These are done all the time. Have I ever had one done by doctor no. Have I had a ICD shock which is same thing the cardiocoversion does. YES, about a dozen from my implanted ICD/Pacemaker.

I don' think they put you into deep sleep just a comfortable one to remove the anxiety and stress.

How stressful is being shocked while awake? Not good. Some described no problem and some say being kick by horse. I would say kind of like being punched in the chest by Muhammed Ali.

The first time will greatly scare you and say oh wow as not aware would be that strong. Then after several you come to the conclusion that the ICD shocks are taking you out of tachycardia and saving your life. So like my doctors told me kind of like having your own EMS team waiting to help.

I assume you are having cardioonversion for AFIB is that correct. They are done all the time when AFIB does not correct itself on it's own. Did your doctors tell you the biggest issue with AFIB is increased chances of stroke because of blood clotting chances are increased.

Discuss with your doctors about medication to prevent recurrences and also life style changes to help reduce stress and anxiety that can lead to PVCs, AFIBs, etc.