Autonmic neruopathy definately affects balance - with no sensory nerves in my feet and legs propeciaition is gone - but the autonomic component affects blood pressure (stand up and pressure doesnt comply - you sit real fast!) Also, I literaly get vertigo from the autonomic - I had tests on my ears and they are out of wack (although I can hear a fly a block away) the nerves that control balance in my ears are way out of wack, and the docs say again, its nerve damage... (autonomic hint here - NIGHT LIGHTS!!!)
You remember the song, "I'm so dizzy....." - I still put that on sometiemes just to laugh at myself....