Thyroid autoantibodies this could be adding to your problems.

You need to check your Total T4, Total T3 levels and maybe Reverse T3 levels. TSH by itself is a joke of a test.

What are your autoantibodies at? levels and reference ranges?

Also Peripheral neuropathy can be caused by B12 deficiency. I would Check B12, Red Cell Folate and Iron Studies.

The range i have here in australia is 200-800. Anything BELOW 500 is DEFICIENCY remember that dont listen to your doctor. It matters what's inside your cells not in your blood.

Peripheral neuropathy also can be caused by degeneration of the myelin sheaths, the insulation around the axons.

Vitamin B12 is essential to cells because it's needed to assist folate in making DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), which carry and transmit genetic information for every living cell. This information tells a cell how to function and must be passed along each time a cell divides.

Rapidly dividing cells need a continuous supply of vitamin B12 and folate. Vitamin B12 plays a central role in folate metabolism. It releases free folate from its bound form so it can be absorbed, and it helps in the transportation and storage of folate.

A deficiency of vitamin B12 can create a folate deficiency even when dietary intake of folate is adequate. That is why a deficiency of either vitamin causes a similar type of anemia.

Vitamin B12 functions in the production of a material called myelin, which covers and protects nerve fibers. Without enough B12, the myelin sheath does not form properly or stay healthy. As a result, nerve transmission suffers, and people experience irreversible nerve damage.

I would try to get the Methylcobalamin form of Vitamin B12 as this has been used to regenerate nerves in people with nerve related diseases.

Finally An Essential Fatty Acid supplement would be very helpful. Containing Omega 3, 6 and 9. Omegas help keep the neurones which connect up to the brain in good shape.