Small fibre neuropathies are both unmyelinated and thinly myelinated small fibres that control sensory,pain, & tempature information as well as a large variety of autonomic functions.

I have small fibre neuropathy, and have always felt that alot of my BP and anxiety issues are neuropathy related. My small fibre specialist said though I have passsed all my autonomic testing, I must have some degree of sporadic dysfunction now and again,often presenting with excess sympathetic activity.

There was a time there that I was unwell, every day. I couldn't put my finger on it, with alot of vague symptoms, but I had malaise almost everyday. This was attributed to the autonomic dysfunction. There is also apparently a forum for autonomic problems,but I have not found it yet.

I hope some more scientific opinions follow soon-