It's important to be careful not to read too much into one or two particular symptoms, because symptoms themselves can be indicative of a number of conditions. I can't comment on the likelihood of peripheral neuropathy as an explanation for your son's behaviors - it is not within my area of expertise. Be sure to consult with a pediatric neurologist. If your son displays some condition on the PDD
spectrumSpectrum-4, he would qualify for a diagnosis of
autisticAutistic behavior disorderAdjustment disorder
Anorexia nervosa
Asperger syndrome
Autism
Autoimmune disorders
Bipolar disorder
Bipolar disorder
Bleeding disorders
Borderline personality disorder
Bulimia
Chronic motor tic disorder after consideration of a range of symptoms in several
clustersCluster headaches. The behaviors you mentioned, in and of themselves, would not qualify him for a diagnosis of autistic disorder.