Looking for advice on managing POTS symptoms with EDS

I have eds, pots and gasteroparesis. I wish someone around here would test for MCAS but every doctor I've seen thinks it's a psuedo science. I'd say the worst part I find about having pots and eds is when I'm going up the stairs. All the blood is rushing to my feet? But my leg muscles feel like they're starved for oxygen, this makes them weaker and I risk a sublextion. It also doesn't help that I've fainted a few times and landed on myself a certain way to where I knock ligaments and bone out of place

I have CRPS, ME/CFS & POTS. I really just make sure I'm hydrated with lots of water and salts & I wear compression socks most of the time. I'm not really able to walk or stand much, and it's hard to tell what is from me/cfs exhaustion & what is from my POTS low BP while upright. Sorry I'm not much more help!

I’m super sensitive to medication so the usual POTS remedies didn’t work very well for me. I’m currently doing iv fluids twice a week and it seems to be helping a lot to keep me stable! I had a weird reaction to saline (possible MCAS) so I use Lactated Ringers instead.

I have pots and some form of connective tissue problem but unclear if eds or not. I probably got worse after high school symptom wise