What I think is going on for me is that the mestinon is affecting my BP. I think I am pretty out of shape at this poiint and I think that affects some of what goes on too. I know that in the morning some days my chest aches. I know that pushing water and getting mestinon in me can make that stop. Given the frustration at the university with my case I havent brought this up yet except breifly with my pulmo. Honesly I am afraid it would get used to take my mestinon away.
I am putting up a link here that may be of interest. I have read alot on autonomic dysfunction and POTS and related areas like low blood volume as I know something goes on with me around these things. My internsit said that is why I rally when I get IV fluids as my daughter said. She was the one who said to increase salt along with being sure to get a gallon of water a day. This simple treatment did reduce incidents I was having. Still have the chest ache.
http://en.wikipedia.org/wiki/Orthostatic_hypotension
Annie59