I am 53, nonsmoker 300lbs, 6'5" tall. I had ablation for A-fib in April of 2013. I had no issues after the surgery, off all meds for the a-fib. I currently take Ramapril and Cartia XT for HBP. I started CPAP therapy 2 weeks ago. Pressure setting of 8. The first week all went well, but really did not...