atrial fibrillation
"I have been on this for four months now and while it almost completely controls my a fib with 80 mgs twice a day I am extremely tired to the point that I have gained forty pounds since starting it because in the evening after pushing through my whole work day all I do is sit down and I am asleep immediately.  I  have tried asking dr for different medicine but he keeps saying it it NOT the medicine making me tired."