All, I am new to the group. I'm 53 and have had SVTs for 20+ years. Mine last hours. I've had event monitors 4 times that found nothing to explain. Many happen when I'm doing mundane tasks or at night during sleep. Finally, thanks to my Kardia device, I finally caught them and have been referred for an ablation procedure. My question is this. Once the cardiologist identified them, he put me on Metatropolol, which has caused weight gain, headaches, digestive issues and overall lethargy. I'm not a fan of how I feel or the prospect of staying on them for life (one solution to ablation provided by EP). I am very active and do not like how I feel or the side effects I'm having. My EP just recommended switching to Diltiazem. After reading more about this medication, I'm worried about making the switch. Can anyone share their experiences with either of these meds? I'm going back in Feb. to talk next steps, but am definitely leaning toward ablation as opposed to lifelong meds. Thanks!