I seem to have the opposite problem, nothing will come out! I went to Mayo and had the whole series of awkward and embarrassing tests so they could measure the dysfunction which was readily apparent. I tested in every department, it seems, at Mayo. I even tested poisitive for POTS on their tilt-table. Then the neurologist told me they couldn't rule out this all being caused by "anxiety!" I was in shock by neuro's final analysis. They literally walked me out to the hallway and said goodbye. ...Dr. Low, their head of dysautonomia. Fortunately I was also seeing the head of rheum while I was there, too, Dr Matteson. He found anti-nerve antibodies in my blood and recommended immunosuppressive therapy, I have been on immunosuppressants through my local rheum, who he knew and liked. Symptoms are better on these meds. My recommendation would be to try and see rheumatology while you are there, too. And don't worry, while they are "testing" on you, know that many of us have been there before you!