I have POTS, Dysautonomia, and EDS3…. learning more about Mast cell and the pressure on the brain from Dr D. It took me 7 years to figure it all out and IM still at it I think :)… HOpe to learn more from all of you!! Tracey– PS- My sister has it too just like me. So we think it was carried from my Mothers side although she didnt have many symptoms, but my grandmother does.