I was diagnosed with PAF 2 years ago and have been lucky to only have experienced rapid uneven beats 4 times a year. I take 2.5 bisoprolol daily and pill in pocket when necessary. I started will rapid missing beats on Friday morning and have been in and out of AF since then. Last night beats per minute ranged from 80 to 39. The 39 alarmed me! Is this part and parcel of AF? Hope someone could advise me.