Welcome to NeuroTalk:

You can damage your liver with high doses of Tylenol like that!
Please be careful.

First off many diabetics are low in magnesium. This is because you lose it thru the urine more than non-diabetics.

Magnesium is in whole foods, and many don't even eat enough to get the RDA anymore. A good oral supplement or topical form may help you with this.

This is my magnesium thread:
http://neurotalk.psychcentral.com/thread1138.html
Do not purchase OXIDE form of this...as it is not absorbed. It is used today as a laxative (Phillips tablets).

Try soaking in some epsom salts, and lukewarm water. 6-8 oz in a bathtub or 2 oz in a small foot tub. Some magnesium will be absorbed this way and it can be relaxing and very helpful.

Get your Vit D level checked and also B12. These can be low, and when they are low significant nerve symptoms can result.
Get your numbers for the B12 --should be 400pg/ml or above. Anything lower should be supplemented with methylcobalamin (active form) daily on an empty stomach.

This is our B12 thread:
http://neurotalk.psychcentral.com/thread1138.html

These are the BIG THREE supplements most commonly lacking normal levels in the US.

R-lipoic acid stabilized can help diabetics, as well. But do the Big Three first.
This is the R-lipoic to try (100mg a day--this is the newest form)
http://www.amazon.com/Doctors-Best-S...octor%27s+Best