Cyclelops, I did have some autonomic tests done back at the end of 2007 within a couple of months of getting the neuropathic pain but BEFORE Gastroparesis.

They did the QSART and a cardiac test which were normal at the time. I didn't have the tilt table test. I haven't had a skin biopsy done as it is only available here for research purposes and rarely at that. As yet to my knowledge it has not been approved for general diagnostic use by the Australia Gov't protocols.