When people lose weight very quickly, there can be a low Omega-3 situation... it is nicknamed slimmer's paralysis.

Not enough Omega-3 fats in the food you eat so you cannot
fix damage to nerve sheaths...with are lipid based.

There is a thread here from a fellow who stopped drinking and recovered his nerve functions ...here it is:

http://neurotalk.psychcentral.com/thread104096.html

Vitamin B1 is the most critical after the B12. Benfotiamine form of it is better than the old original thiamine.
When you ask for the B12 test, also get a Vit D test at the same time.
Bring both number results here so we can see them.
At least you should be on a B-complex-50mg... that is the typical treatment for alcohol withdrawal.

Have you had nerve conduction studies to see if you have axonal problems?
Another thing that can happen is that heavy metals or toxins that are stored in fats, can be released quickly when you loose fat stores in a short time. I'd get tested for arsenic, mercury, lead, and cadmium if you can.

Also, I'll fix that title then.