How do I know if you are addicted to drugs?

1. You pass up social situations and things you would normally enjoy in order to use drugs.
2. You suffer withdrawal if you attempt to stop using.
3. You attempt to keep your use a secret. This actually tends to be a sign for others in your family or circle of friends rather than one you may notice.
4. You experience increased tolerance with increased use.
5. You are unable to control your usage, unable to predict outcome after use, and unable to stop once started.
6. You continue to use despite adverse consequences.
7. You deny obvious problems related to drug use.
8. You use drugs as the primary way to deal with your problems.