question: I m a 63 yr. old female gastric bypass /roux-en-y Aug. 2013. Been on Losartan Potassium 100mg. qd for awhile now, put on Bystolic 5 mg. maybe 6 mos. before surgery both meds are taken q AM I m having periods of funny strange drifting feelings lasting approx. 30 sec. pulse rate regular running 55-61..BP 128/76. Could this be the two bp meds fighting each other, my BP is nothing as it was before the surgery (always elevated) Which med should I start to taper off of first? Weight has gone from 269 to 194.