I had a hysterectomy and then I found I was in AFIB when I had the surgery which lead to 2 isolated pulmonary ablations. Since the first one I would experience vertigo (which I've had since a head injury 25 yrs ago), but then I get these horrible headaches that last for 2 -3 days, on right side of my brain. Pain seems to come from base of skull behind right ear. Also getting bloody noses. My blood pressure is fine. I still have heart palpitations but my pulse is only 70. I'm on coumadin, sotolol, meclinzine and priolosec for acid reflux. Could it be possible, brain tumor, medication related or food allergy?