Since my cardio doctor increased my Metoprolol to 50mg twice daily, my pulse remains 48-53 bpm when I am sitting quietly talking, reading, driving, etc. I still have frequent episodes of the SVT with the highs being over 200 80% of the time. Will my body adjust to the increased medication and my resting pulse rise to a more normal range? Will it eventually put an end to the episodes of SVT where my chest gets tight and I sometimes get out of breath? Or, are these just symptoms I have to learn to live with? I want to exercise, but am afraid to do so. If my heart rate soars to 200+ sitting still, what will happen if I exercise? Since I've begun treatment, my BP is also consistently higher than normal. It used to run 115/65 and now runs 146/45. The low number seems disproportionately low to the upper number? Is that a result of the SVT or the medication? I thought Metoprolol was also prescribed for high blood pressure?