I think you may have a problem if you can't actually go without alcohol for a week. Its one thing to say you can. You may believe you can but when it comes to the crunch your body will start doing all sorts of things. We have a neighbour who I, and many others, believe is a high functioning alcoholic. he has received a warning for turning up to work over the legal limit before. He can't go a day without drinking. If he gets till night time and he hasn't had a drink he will have sweat pouring off him, be agitated and not with it. He has admitted to not being able to sleep without having a few drinks before bed. His standard alcohol consumption each day is at least 1/3 bottle of scotch or bourbon and can easily drink a bottle in one night. He knows he drinks a lot. He won't admit to it being a problem that needs fixing. He knows he has to cut back enough during the week not to blow over at work the next day so instead of drinking half a bottle he has cut back to 1/3 bottle instead.
whether you are dependent on alcohol or not you are questioning your use. That signals there is possibly a problem. and, that they say, is the first step. Admitting you have a problem. Obviously something has triggered you to question yourself and your drinking habits. Maybe you do need to explore the possibility of an alcohol dependence.