--"axonal sensorimotor polyneuropathy", is, as Echoes points out, more descriptive than anything else; it indicates that the initial deterioration is in the nerve fiber rather than the covering/insulating myelin sheath and that it affects sensory more than motor functions (but that it affects both).
Most of the time, this is a diagnosis made for insurance purposes, in that there is a code for it and billing for visits can occur.
It would be far more interesting and useful to get a diagnosis that would imply a CAUSE for the axonal deterioration, if one can be found, as that may have implications for treatment and improvement. Common causes of axonal neuropathy include diabetes, a number of anti-nuclear antibody autoimmune diseases, chemotherapy and other toxic exposure, gluten sensitivity . . .what kinds of other testing for cause have you had?
So you can have some resources, look at:
www.lizajane.com
http://www.questdiagnostics.com/test...ripheralNeurop
http://www.aafp.org/afp/1998/0215/p755.html