Now classified as in permanent AF, blood pressure sitting nicely, 120/72, pulse remaining now under 90, probably averaging 85, with 250mg Digoxin, 12.5mg Bisoprolol, and 300mg Dagibatran, per day. However, today, probably on three occasions now, a very fast vibration coming through my lower breast bone, just at the heart, with associated heavy breathlessness, and light headedness. Only lasts for about 30 seconds, and last night had the familiar large thumps off the inner chest. Have not had these for a while either. Anyone else had similar, or know what the fast vibration is? Almost like a high speed dentist drill. Quite strange..