Paroxysmal A-Fib, 69, female, slim, in good shape: I was just in hospital for 4 days for dofetilide adjustment, heart cath and trans-esophageal ultra sound. My valves are okay for a while yet. Docs doubled the dofetilide. Outside of being in A-fib almost constantly now, I am yawning and sleepy all the time right now. Has anyone else experienced this?