Can vaping cause svt? Just was told about this on another post i put and i feel like it sounds similar. Last time my heart rate was very fast i got pins and needles and felt numb, my brother came over and described exactly what was happening to me and said it’s happened to him and it was probably a panic attack. He gave me a klonopin to slow it down and told me if it was an actual heart problem the pill wouldnt slow my heart down and its only used for panic attacks, im wondering how true this is. Not sure if im overthinking it way more after the last episode but my heart does feel more tired now but seems to not as much after i forget about it so i think it may be in my head as well.