-seem to have greater sensory than motor symptoms, but there are plenty of people who have more motor than sensory effects, especially with many of the autoimmune neuropathies, such as CIDP (chronic inflammatory demyelinating neuropathy) or its variants.
CIDP itself is thought to be the subacute/chronic version of Guillain Barre syndrome, an acute onset paralyzing motor-sensory neruopathy that is usually self-limiting, but can have many longer-term residual effects.
There are a number of autoimmune or compressive motor neuropathies; there are also many genetic/hereditary motor syndromes, and it often involves extensive testing to determine exactly what is happening. Have you gotten a more specific diagnosis? And, do you have any sensory symptoms?
Take a look at:
http://www.neuro.wustl.edu/neuromusc...y/proxmot.html
http://www.neuro.wustl.edu/neuromusc...mdem.html#cidp
http://www.neuro.wustl.edu/neuromusc....html#motorddx