Sounds like a good idea. I did some poor man's tilt table testing myself, when I don't think I was dehydrated. time, blood pressure, heart rate, symptoms lying down for 5 minutes, 109/69, 80 2 minutes standing, 109/60, 109 (irregular), feeling light-headed, my feet and lower legs begin to burn 3 minutes standing, 97/62, 113 6 minutes standing, 110/62, 120 (irregular), legs are very uncomfortable and trembling My feet still tingle.