Muwel88,
Welcome.
In AA we do not shoot our wounded. Just go back and tell them what happened. The rooms are full of people who have relapsed. You will be welcomed back with open arms, trust me.
Also, a lot of people have said that withdrawals can be dangerous. I am not going to sugar coat it, withdrawals can be DEADLY. As in FATAL.
Alcohol has the highest mortality rate from acute withdrawal of any drug, 7 times as lethal as opiate withdrawal. Do not f$%# around, get your ass to a Dr., preferably an addictions specialist.
Keep posting, there is a lot of good support here.