An addiction must meet at least 3 of the following criteria. This is based on the criteria of the American Psychiatric Association (DSM-IV) and World Health Organization (ICD-10).
Tolerance. Do you use more alcohol or drugs over time?
Withdrawal. Have you experienced physical or emotional withdrawal when you have stopped using? Have you experienced anxiety, irritability, shakes, sweats, nausea, or vomiting? Emotional withdrawal is just as significant as physical withdrawal.
Limited control. Do you sometimes drink or use drugs more than you would like? Do you sometimes drink to get drunk? Does one drink lead to more drinks sometimes? Do you ever regret how much you used the day before?
Negative consequences. Have you continued to use even though there have been negative consequences to your mood, self-esteem, health, job, or family?
Neglected or postponed activities. Have you ever put off or reduced social, recreational, work, or household activities because of your use?