You are uncomfortable because you have conditioned yourself to believe that having a beer in hand is part of the experience of being out: welcome to being one of Pavlov's dogs. Over the years you have come to consider it 2nd nature to have that optional component of an experience be a mandatory and integral part of it. Consider why you go out, and what reasons motivate you to be there other than to drink. I'm going to go out on a limb and assume that there are reasons that are far more important to you than catching a beer buzz. The beer was the garnish, not the meal. Don't give up eating the burger because you can't have the pickles.
Recognize that you conditioned yourself to feel the way you do now. You created it, so you can kill it.
Recognize that you conditioned yourself to feel the way you do now. You created it, so you can kill it.