notgonnastoptry, I never suffered physical withdrawal either, and I feel very fortunate for that.
What it comes down to is staying focused. Remember, as Mikie said, the reason why you are choosing sobriety. Be mindful of your thoughts and how your body is reacting to them. When you tense up, try to relax. The links soberwolf posted are very helpful in this process I have found.
Hang in there!