Hi Sylvie,
There is an exercise training program by Dr Leviene from Dallas that might be helpful for POTS.
http://www.sciencedirect.com/science...66070214002021
You can read about it in this blog -
http://potsgrrl.blogspot.co.il/2011/...-protocol.html
There is a lot of information about tests and treatments for POTS in that blog.

According to what you wrote here and on previous posts, if your blood pressure is falling when standing, I am not sure the diagnosis is POTS, as far as I know it seems NMH/OH.

Just a quick note about POTS and NMH/OH: POTS can present by itself. But patients that have NMH/OH almost always have POTS as a secondary Dx...because of the very thing I discussed earlier in this thread. When the BP drops upon standing, the body naturally and automatically increases heart rate (to tachycardic levels) to compensate for the low BP to get blood to the brain quickly. So, they end up with POTS secondary to the NMH/OH...because both conditions are a result of postural/orthostatic changes. I hope this makes sense.

I have both....as noted by En Boc, they are interrelated. I've heard about the Leviene protocol, but have not read anything except patient experiences....thank you for these references!