Hi all - little backstory. Had a successful SVT ablation Sept 2017, 2 weeks ago I had another EP Study with an attempt of an SVT ablation but my heart would not go into SVT. My doctor confirmed the first ablation was not reversing itself, I just have an extra "natural pacemaker" that is causing the SVT episodes again. He started me on 20 mg of Nadolol once a day, and I feel okay but my heart rate is dropping into the 50's at rest which is very low for me. I'm not having any symptoms of low BP or anything, not sure if I should be concerned or wait to see my doctor next month.