Same thing happened to me. I was in the class of June, got to 31days then decided 2 bottles of wine was a night 'off'- about 9days later and I was back here.....at day 1.
Like everyone - I didn't know why I did it. I was feeling so much better mentally and physically. Then I started drinking again and everyday I drank, I felt even worse. It was also most like I knew it was making me feel crap, but didn't care. Everyday I drank, I also had the runs. Why did I put myself through this?!?
So I came back to SR. And now sober a week. I honestly think if I think about touching alcohol again, I will remember 9days of the runs and believe me, recovering from that wasn't quick or easy. Being in work and having that sort of pain and being uncomfortable just made me constantly ask myself "why do this ever again?!?"