Yes, I also experience tingling, shaking, and trembling on Flecainide. I notice it in my hands, in particular. I've been taking it since July 2003. It does help restore me to NSR sometimes, but the big picture is that it's not an effective medicine for me. SO...I'm scheduled for an ablation on November 17. Hopefully, that will mean NO MORE DRUGS! (Including Flecainide!) I also experience "itching" over my whole body, and not sure if it's the Flecainide or the Coumadin.