First a bit of background. Since March, I have had an ongoing medical issue, unrelated to my AFib, which I'm pretty sure has seen my stress levels rise and so I don't think it's a coincidence that episodes have become more frequent, and longer lasting, during this period - I'd usually get five to six AFib episodes a year. but I've been getting one a fortnight in the last six weeks or so.
During this time I've also experienced a new symptom - dizziness lasting no more than five to ten seconds (I don't get it every time I'm in AFib these days, but I never used to get it before - my daily dose of Doxazosin has been doubled recently).
It's the dizziness that I wanted to ask about. Back in May I had the dizzy feeling just before I started climbing one of the hills which I find can help put me back in sinus node. Ten minutes later when I checked my pulse at the top of the hill, my AFib episode had stopped - I put it down to another victory for the hill over my AFib!
A fortnight ago, I'd been in AFib for about 37 hours when I had another dizzy spell while sat in front of my computer. This really concerned me because I also experienced a feeling that I'd only had once before - that was in 2008 when I had a possible TIA (my GP said he couldn't rule out a stroke, but he was happy for me to drive home from my appointment which gave the clue as to his feelings on the matter). I can only describe the sensation I had as a funny bone feeling, but an inch or two below my left elbow, this time though the same type of feeling was in my head and I made an immediate appointment with my GP practice.
I saw a different GP this time, he could find no evidence whatsoever of a stroke and put the dizziness down to me spending too much time in front of my computer. He also confirmed that my heart rate and blood pressure were "fine" - the bit about my heart rate didn't surprise me because my heart was back in sinus rhythm when I had checked my pulse about a minute or so after my earlier dizzy spell.
This morning at 1.30 I woke up in AFib and at about 5.30 I had another dizzy spell, but when I checked my pulse a minute later, I was back in sinus node again.
So, that's three times now that my heart has returned to normal a short time after having a very brief dizzy spell. I would have thought that dizziness would be a sign of a heart not working properly rather than returning to proper working order. so, on balance, I think it's just a coincidence, but I would be interested to hear if any of you have experienced something similar or have any thoughts on the matter.