jim

One more thing. Probably a remote possibility, but changes in dosages of steroids can cause some weird symptoms.

Mayo is a great place- the autonomic neurologists there finally diagnosed my POTS after 2 years of searching for a doctor who would believe that I really had something going on. Funny thing is that the only local doc who believed me was my ENT. I had occasions when I would be walking, and suddenly the world would seem to spin in one direction. I was referred to the ENT for the dizziness and occasional ringing in my ears. He did some weird test where they ran hot and then cold water in my ears and monitored eye motion. Never felt so dizzy in my life. Anyway, the results indicated some kind of massive neurological response to perceived motion. This test was repeated at Mayo, with totally different results. My suspicion is that my dizziness was caused by both changes in blood pressure and damage to the nerves of the vestibular system (the system that lets your brain know it's position with the rest of the world). As my POTS began to improve, so did these symptoms. Good luck at Mayo!!