Mark,
I am a 53 y/o male that has had 20 years of problems with headaches and irregular rhythms. The couple of times I went to the ER, they said they were A-fib, but didn't do squat for me about them.
I've has issues for those 20 years with hormone imbalances, briefly, my body doesn't make enough testo. I was on shots for most of those years and recently went to gels, patches, etc.
What I have patterned that when it's time for more testo (on either a three-week shot rotation, or when on gels, after not taking any for a day or so) I get the irreg heartbeats. I have patterned it way too many times for it to be just coincidence. I have a medical background so I know what I'm doing. The 20-30 docs I've been to over the years won't recognize that pattern, and wont' link low hormones (via thyroid involvement) with the headaches or heartbeats.
I have proven both of these are related to the fluctuating hormone levels.
If you find a doc that will listen when you present this correlation to him, let me know, I'll fly to wherever and visit him myself.
As men get older their hormone levels change (T decreases) naturally, and that is when the incidence of irreg HB increase. Do the research, you'll see the correlation (or some say coincidence).
Ken