--although a lot of doctors are still behind in their continuing medical education on this, impaired glucose tolerance not yet to the point of a diganosis of frank diabetes is becoming more recognized as a generator of neuropathy. (And that 2-hour level does seem high--it's possible to have "normal" fasting glucose levels but an abnormal response to glucose challenge, indicated impaired tolerance.)
I've written about this a number of times in the past, with links to papers one can read and take to the doctors who still seem to believe one has to have diabetes for years before getting neuropathy:
http://intl.neurology.org/cgi/content/abstract/60/1/108
http://www3.interscience.wiley.com/c...TRY=1&SRETRY=0
http://www.ncbi.nlm.nih.gov/entrez/q..._uids=16448668
http://www3.interscience.wiley.com/c...07929/ABSTRACT
http://www.ncbi.nlm.nih.gov/entrez/q...d_AbstractPlus
There are many others--it's sad that so many doctors aren't aware of this.