How do you get your dr to do the tests that you feel you need done? I always feel like my heart is playing "catch-up". When I change activity, I am gasping for air and my heart is racing. Also, I was wondering about the thyrold. Maybe there is a problem. I went to the dr because I am feeling crappy and he just did the cbc and enzymes. Of course, all normal. So, anyone had luck w/ convincing the doc to do these tests?