Many of the symptoms of hangover...are due to ALDEHYDES building up in the body, from alcohol intoxication. Binge drinking is quite dangerous in this way, and also to the brain. Alcohol is a poison basically.

When you are not drinking there is no overload on the dehydrogenases (that thiamine B1 is part of.) But if you binge after a long dry period, the enzymes are not plentiful enough and the hangover, is much longer and more painful.

Many people find after giving up alcohol, that a slip, and have just one drink can make them ill, or give tingling with the nerves called paresthesia.

When did you start the Zoloft? It can cause all sorts of problems in some people.

What type of magnesium are you using? If it is Oxide form, that has to be changed to a version that is actually absorbed from the GI tract. How much thiamine do you take? Is it benfotiamine form? I hope you are taking methylcobalamin form for B12, and on an empty stomach.

I am having a difficult time understanding your use of "alcohol withdrawal" as a term. Stopping drinking of short duration should not give a "withdrawal". When you stopped initially in the beginning, that is when a "withdrawal" comes. Binge drinkers do not typically get withdrawals, they get poisoned by the high doses of alcohol used only periodically.

There is some new research coming out on the damage from binge drinking:
http://psychcentral.com/news/2014/12...lts/79265.html

And this article explains the brain damage binge drinking can cause:
https://www.quora.com/How-does-binge...fect-the-brain

I think you know you should stop all alcohol completely.
Much of your anxiety and discomforts will go away, if you stop.

If your Zoloft is the culprit, that will be easier to evaluate when alcohol is out of your life. You may need a dose reduction or a switch to a different antidepressant, if you have continuing depression.

Take care.