I was told to read and post a lot which has helped a lot. I was also advised to have a Plan. For me that has been meditating, walking and eating healthy foods, drinking lots of water. The meditation has helped me to just watch that Addicted Voice trying to convince me that I can drink once in a whle and eat crap food without going into a binge.
I did not have withdrawal symptoms but that is probably because my primary addiction is to food but if you fear that you might, please get medical attention, Snowtown.
Congratulations on the best decision you have ever made!