Sorry to hear that your heart's electrical system isn't cooperating. Nerves heal, too, so hang in there. The story isn't over yet with that.
You'd have some kind of an anticoagulant for three months anyway, so the Coumadin is likely a wash at this point. If they can keep you out of AFib, you may be able to graduate off of it. No matter what the drug, less is better. Of course, you want to get off the Amiodorone, too.
But right now: heal, Steve, in whatever way you need to. My thoughts are with you.
Very best wishes,