I'm just wondering if there are anyone out there that had any kind of heart problems before vaping and noticed any big changes since vaping? I had an episode of supraventricular tachycardia once and have tiny heart palpitations once in a while. I just got done being on a heart monitor because I could feel fluttering in my chest that kept happening every 15 minutes for a full day. The results was that they saw nothing (which makes no sense to me because I could feel them). Anyway, I only smoke about 5 cigs a day but I remember when I was only vaping that I did not have any of these episodes. So I'm just curious if anyone else has had anything similar and has seen a change since vaping.