Buzz is practically a formula of drunk, and if you're hiding it/etc... yeah those are the signs, but ... for you to realize it is the most important thing, as then you can begin your quest for help. I don't know what path you'll go on but ... if you feel you cannot do it yourself then I would suggest AA and also to stay on this site to talk about it until you feel you have a grip on it
I sure remember my beginning alcohol days and my anxiety, I would drink to DROWN my anxiety as I called it... wow, almost 5 whole years ago... wow, wow... and wow :-p.