After an ablation for a-flutter, I began to experience a-fib. I was treated with sotalol but had breakthroughs. Switched to flecainide which worked but with side effects. I recently stopped the flecainide and have had no significant a-fib that I can discern, although some skipped beats. I do continue to take bystolic and azor for high blood pressure. However, since discontinuing the flecanide, I have had what I would describe as a pounding heartbeat (not rapid), dizziness, and consistent blood pressure readings of 140s/50s. I have read that the high difference between systolic and diastolic pressures can be significant and that the difference (termed pulse pressure) should be between 40 and 60. Is a pulse pressure of 90+ clinically significant for a 59 year old female? Does it indicate anything in terms of heart rhythm? Thank you.