Chy, you said it so well, thanks! What constitutes normal? No matter what we have a problem with, if it's drinking, eating, turning light switches off and on 50 times before we're sure they're off, normal means not only not obsessing about it; it means not even thinking about it. Normality, by its very definition, doesn't even pop up on our internal radar screens.
I "think" about my drinking, I justify it to myself or others, I rationalize it, I make up rules within which I am "sure" I can stay to prove I don't have a problem, that's a hard and fast indicator that I have a problem.
I'm not saying I have the answer to alcoholism- if I did I'd bottle it and sell it and be a gazillionaire. But the first step is that simple question: "Do I have a problem?" Invariably, if I have to ask the question, the answer is "Yes."