Hi Rickfox2676 I can totally understand your concerns. I have suffered from low BP upon standing, walking and most anyother natural movements. Two events occurred, that my BP would not show on the BP cuff, resulting in ER visits. I have had syncope spells and near blackouts while golfing, walking, picking up trash and even while driving. Many times, I visited the VA Hospital and was told everyone's BP falls upon standing but your's is much more profound than average. Finally I resided in the hospital for a week and decided that Afib was the primary cause and I had a re-conversion. Even after that process after being put on Beta blockers and Blood thinners, I still suffer from this. I have had to quit playing Golf, Driving, or any sport or exercise where even fast eye movement is necessary. I have been fortunate, for I have fallen many times, but have not really injured myself. This has occurred the last 15 yrs of my life. I have been seeing an Endo Dr for about seven yrs and have been prescribed Cortisol off and on. Every Cortisol test shows borderline?? levels in my blood and my PTH level last test was 145 and the Dr said it should be watched??? Several of my Chemicals are out of balance and I have a blood test every 3 months. I get so frustrated when the Dr says I am a complicated case. I know that death feeling and it is no FUN. I wish you all the best and may your Dr determine some explanation!!!!