Only you can decide if you have a problem. Are you drinking more than you like to? Try to go for one month without drinking. If you can do that then reasses your alcohol habbits. If you cant go one month - then think about that as well.
If your doctor doesn't think you've damaged yourself then you probably haven't.
It's all up to you though. If you think you need to stop then you do. If you think you can handle your life as it is - look up moderation management on google. If you're having trouble cutting down, but aren't dependant on alcohol then that might help.
Bottom line - you found SR for a reason.