It is great that you have acknowledged your feeling rather than reacting to the desire. These types of days test us to see how our strength is. I have been where you are today and the best thing is when I could stick it out and stay strong.
I often hear that thinking through the process of obtaining that first drink and through to the end result can help. It has helped me. I still remember my last drunk and know I do not want to have that experience again. At least not today. Stay strong and talk to another alcoholic and keep posting on this site and you can make it through another day. LOL