C.R.
Don't be scared! I had SVT for years before I ever saw a cardiologist. The racing heart (palputations) were horrible. I would just be doing everyday things, and my heart would start racing. It would last anywhere from 30 seconds to a few hours. At first it only happened every few months, but after my second child it began happening several times a day. They finally decided to send me with a heart monitor so they could record what was actually happening. When I went to get fitted, my heart was racing, so I never had to take it home. My heart rate was over 180 for no reason.
The cardiologist I saw was great. He explained that it SVT is pretty common. I could take medication for life or have abalation. I tried the medication, but it made me so tired. I was only 21 and the thought of being on medication for the rest of my life wasn't all that appeling either. I opted to have the heart study done and catheder ablation at the same time. The cardiologist said it was a fairly routine surgery. It turned out that I had one extra connection in my heart, and that was what would cause the rapid heart beat. The surgery was a one day thing. I went in at 6 in the morning and was home that night. I just couldn't lift anything for a few days, (near impossible btw with a baby). I had this surgery Sept 10, 2001, and have not had any issues since. It has been amazing.
Talk to the cardiologist. Know that he will lead you in the right direction. Trust yourself. You know how much the racing heart is affecting you, no one else does. Know that if you need anything you can ask, I'll try to help. Good luck! I hope this helps.