Addiction 
To dream you have an addiction, a person may attempt to gain control over you or a situation could overcome you. The dream could also indicate that you have trouble connecting to your immediate environment.
Addict
To dream you are an addict could signify that you've lost control of a circumstance. You have given up control and denied all responsibility for your actions. This kind of dream can also indicate fear, low self-image issues, and other latent insecurities.
Overdose
To overdose in a dream indicates a lack of control over yourself. You may be struggling with depression or addiction in your daily life and it might be time to find assistance.
An overdose in a dream may also indicate that you are filling yourself with too many responsibilities and you desire help from others to get out of an overwhelming situation.
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