So yesterday, my cardiologist did an electrophysiological diagnostic catheter study, and during the study the doctor discovered that I had AVNRT, or atrioventricular nodal reentry tachycardia, the most common of all these types of issues. I was under mild sedation and aware of everything. I couldn't feel most of it, but did feel it when he burned the bad cluster of neural cells which were causing my double heartbeat and tachycardia. Afterward, the doctor told me that my condition was congenital and I've probably had this my whole life, which was true. However, it often gets worse as you get older. He also said it's a 94% chance that this will eliminate the tachycardia, which is pretty good. This was my best possible outcome. It has been just one day, but I'm feeling good and keeping my fingers crossed. Thanks again for your help.
The cardio dr. at the hospital suggested the recording heart monitor. I'm going to see my family doctor today to discuss it all with her. Thanks, Jerry.