... shins. One on each shin and the first one has been there perhaps three weeks. I am not diabetic or have lingering, underlying conditions. My afib converted on its own in mid September. What next? Male, 58, don't smoke or drink. Not panic struck but certainly concerned. Current meds are BetaPace 160mg twice a day and Cardizem 240 once per day. They are well tolerated. Thanks for any ideas.