I've felt that way before, too. My problem is that my "weekend drinking" more times that others turned into excessive/binge drinking, followed by hang overs, followed by more drinking until my weekend was over and I felt like crap on Mondays. From what I have learned, and how I have felt due to this behavior, I do think I consider it to be alcoholic. Everyone is different, though, and you know yourself & how you've felt more than anyone.
I think its a good decision to quit. In the past when I didn't think of my behavior as alcoholic and out of my control (once I started drinking), I was always able to talk myself back into drinking. Beware!