Substance dependence and substance use issues can manifest in many different ways depending on the individual. According to the DSM-5-TR, substance dependence may include many of the following behaviors and symptoms -

➡️The substance is taken in larger amounts or over more time than initially intended.

➡️There are repeated unsuccessful attempts to eliminate, reduce, or control the use of the substance.

➡️Significant time is spent trying to obtain, use, and recover from the effects of the substance.

When not using the substance, the individual experiences cravings or urges to use.

➡️The substance use causes functional problems, including the inability to fulfill obligations

➡️Continued use despite negative consequences resulting from substance use.

➡️Giving up social, occupational, or recreational activities due to substance use.

Risky or unsafe use.

➡️Continued use despite knowledge of the negative consequences resulting from the substance use.

➡️Withdrawal when not using the substance.

➡️Increased tolerance, such as needing more of the substance to have the same effect.

Sources - https://www.verywellmind.com/connection-trauma-and-substance-abuse-7269368

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https://www.lmc.org/ptsd-mental-health-toolkit/warning-signs-and-diagnoses/trauma-related-diagnoses-outcomes/