Hi Grizabella - I have by process of elimination of years of tests - what the docs are calling Hereditary Sensory Autonomic and Motor Neuropathy - there is no genetic test for it yet - Boston Gen is working on one now... There is very similar form that does have a test - HSANII - (just doesnt include the Motor Invovlement) - so they are getting there with the tests..... takes a long time.... I hope they can isolate yours