Yes, I found this thread useful when dealing with my own arrhythmias. The thing about arrhythmias is that they can either potentially lead to more serious consequences, or they could just be harmless but annoying - you can't tell just from "feeling" them. Luckily for me it was the latter, but it still scared the **** out of me the first time.

DnvrFox, how are you doing nowadays? I've eliminated caffeine and don't get tachycardia any more.