My episodes were very very consistant in that my heart would skip a beat, then when it 'restarted' it would be at 234 bpm (always the same speed). This would carry on for a length of time, anywhere from a couple of minutes to 12 hours and then it would skip again and be straight back to normal. There was no gradual slowing down or speeding up.
I didn't ever fit, but there was at least one occaision where I passed out. It was that incident that convinced me to report it to a doctor. Before that I would hide it from everyone and carry on as normal. (it happened even during one of my GCSE exams). I was shocked at the response of the doctors, they seemed to think it was important not to let it beat that fast for too long, and would rush me straight to a and e for an adenosine injection whenever it happened. It made me wonder how lucky I was to egt away with not reporting it for so long.
I found it was triggered by tiredness and stress. The other lifestyle factors - caffeine, alcohol, fizzy drinks etc they made me experiment with never made any difference.
I did find it affected my confidence, but again, that could be age related - I was nervous about being away from home, particulary if I knew I was tired, and about being stranded somewhere, or having an episode while driving/swimming etc. I've also always been adverse to anything that would normally raise a persons heart rate, such as fairground rides and exercise, as any adrenaline rush would make it flutter and I'd be nervously checking it.
The ablation op was definitely the right thing to do for me. I didn't like being on the flecainide - the circulation to my hands and feet reduced considerably (I don't think it's recovered yet!) and I started to have sleep disturbances. Both of which I blamed on the drug. Having said that though, when they first put me on it, I had been rushed to hospital three times in the previous three weeks, so I needed to do something! I was 25 by the time I had the op though, so old enough to know what I wanted.