Hi Farmerboy. I have the same thing and they found that I have a type of dysautonomia in addition to RA. It is called POTS, or Positional Orthostasis with Tachychardia Syndrome. They are doing dysautonomia research that shows a correlation between those two diseases in some patients. Have you looked in to that? It is very rare and a long shot, but I thought I would mention it. If you think it might be your situation, you will likely have a difficult time finding a doctor to diagnose you.
Good luck. I hope you find some answers.
Kim