how do you know you have a drug addiction?

Question by doughboy!: how do you know you have a drug addiction?
specifically coke, but what are signs and how do you know when someone has an addiction?

Best answer:

Answer by MIke K
Umm, stealing (money, drugs anything)
Up all night, in bathroom every 10 mins or sneaking away.
Friends are into drugs (coke)
No appetite – not hungry
Weight loss

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