Wow, hot shower worked for you, good deal. Did you try it on your own or did someone tell you about it? I am so hot natured I would probably have a heart attack in a hot shower, lol. JK. I can't stand a hot house in winter. Sometimes I'll visit somebody and they have the heat turned up and I have to leave ASAP! Funny thing is I work outdoors and the Texas heat along the coast is something that takes getting use too but I can tolerate it just fine as long as we have plenty water and breaks every so often. I am curious how often did you have episodes of A-Fib? I myself had one that scared me pretty much four or five years ago and the one I just had two weekends ago which was very mild and an uncomfortable rating of 1 at the most. I thought about the cold shower on my own, I figured it was worth a try and worked just fine.