Chi-town, I drank moderately (within safe limits) for many years and heavily (well outside safe limits) for about a year.

I developed neuropathy and essential tremor in my hands. I spent about a month as a voluntary patient in a psychiatric hospital, taking the first steps towards dealing with my alcohol abuse as well as my Major Depressive Disorder. My psychiatrist, who is boss of the hospital, prescribed thiamine which I took for about a year. Thiamine deficiency is common in people who abuse alcohol.

That was five years ago - my neuropathy has now largely gone and I still have a bit of essential tremor which does not affect me to any great extent.