Good luck RTID! I was diagnosed with the same or similar over 2 years ago. It's very common. I have had both flutter and flimmer. Take medicine, blood thinner mainly, and have been given electro shocks to the chest that gets the pulse regular again but only for a while in my case. Had an operation, ablation (sp?) In January that I hope has fixed the problem though the Specialists who did this thought I'd be back. All the Doctors tell me exercise is good so I do a lot. Unfortunately they say alkohol is bad and as they seem right about that,I can't drink much now without feeling it very quick, I've had to reduce that. Keeping your cycling going if you feel OK is probably the best thing you can do, in my experience anyway. Stay strong!