Alcoholism is the most severe form of problem drinking. Alcoholism involves all the symptoms of alcohol abuse, but it also involves another element: physical dependence on alcohol. If you rely on alcohol to function or feel physically compelled to drink, you’re an alcoholic.Alcoholism is the most severe form of problem drinking. Alcoholism involves all the symptoms of alcohol abuse, but it also involves another element: physical dependence on alcohol. If you rely on alcohol to function or feel physically compelled to drink, you’re an alcoholic.