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Pin and needle sensations as well as burning in the soles are related to peripheral neuropathy
. A wide range of causes are responsible in the development of peripheral neuropathy. Long standing diabetes
, Vitamin B12
deficiencies, inflammatory causes and so on are the common causes.
Autoimmune process is often progressive in nature. Presuming the symptoms have not progressed and you've not developed focal muscle weakness
, I wouldn't think of auto immune process altogether.
You can get your symptoms evaluated under the able guidance of your neurologist
. There is a high possibility that your symptoms might be related to your diabetes. Continuing with proper sugar management, Vitamin B-12 supplements and brief use of selective serotonin reuptake inhibitors should help you with these symptoms.
Hope this serves as a guideline towards your treatment.