I just had a Tilt Table Test and started fainting and feeling nauseous only after 16 minutes during the test. I have the two conditions above and also wake up at night with my heart thumping in my chest and it scares me. My blood pressure went to 76 over 46 during the TTT. Primary doc put me on Florinef and have cardiologist appt 7/22/09. Am I in immediate trouble? I'm afraid to sleep. Also during the day if I bend over too much I am dizzy and vomit. How do I talk to the doctor?