I have major high blood pressure, but my heart has always raced. When I was a kid doctors couldn't figure out why. They said I have tachycardia and irregular rhythms, but otherwise was healthy. I've tried blood pressure meds, but they don't work and only upset my GI tract tot he point that I'm in the bathroom 12 hours a day (even on low doses).
So I just race, I race and race and I suppose some day i'll burn out and fall over. And I don't even get a medal for finishing the race.