Hi all, was on flec for 3 - 4 years with varying side effects after an ablation. slight dizziness almost every day. Rapid heart beat once or twice a month with palps and occasional shortness of breath. Was placed on an internal heart monitor about 2 weeks ago and discontinued flec at the same time. Yesterday had an episode of rapid heart beat and skipped beats. The skipped beats lasted about 2 minutes with shortness of breath and the elevated heart rate lasted for 6 hours and extreme weakness. Will call my cardiologist when they open (shortly) and ask them to analyze those readings. This monitor records every heartbeat for 3 years until the battery wears out. Has anyone had these symptoms after stopping flecainide?