My mother was diagnosed with A Fib. in May.  She is now on beta blockers and coumadin.  The problem is that she experiences dizziness - particularly in the mornings.  This never happened before the A. Fib. diagnosis.   Any idea why she is getting dizzy.  She fell the other day as a result of the dizziness.
Hello, 1) paroxysmal atrial fibrillation, breakthrough episode of atrial fibrillation may cause dizziness.  It's wide to get a 24 hour holder and if still aphid with fast ventricular rate is noted than up titration of medication is recommended.  2)sometimes the very medication used for a fib may lover your blood pressure cause dizziness, particularly in morning when you get up from the bed (orthostatic hypotension) So if you can send me the list of medication, I may be able to help you better.  Regards Chat Doctor.