These are just suggestions and are not based off of sceintific research.

Warning Signs:
Neglected appearance/hygiene: 2 3
Poor self image: 4 2 1 6
Grades dropping: 7
Violent outbursts at home: 4 2
Frequent use of Eye Drops: 1
Unexplained weight drop: 2 3 6
Drug Paraphernalia: 7
Slurred speech: 4 3 8 6
Curfew violations; 7 5
Running away: 7
Skin abrasions: 3 2
Hostility towards family members: 4 2
Chemical breath: 2 3 4
Glassy eyes: 8 1 6
Red eyes: 1 4 3 2 6
Dialated Pupils: 8 3 6
Valuables Missing; 3 2
Possessing unexplained valuables: 2 3
Stealing/borrowing money: 2 3 5
Change in friends: 7
Depression: 7
Withdrawal: 7
Apathy: 1 4 3 6
Reckless Behavior: 7
No Concern about future: 7
Defiles Family Values: 7
Disrespectful to parents: 7
Lying/Deception: 7
Sneaky behavior: 7
Disregards Consequences: 7
Loss of Interest in healthy activities: 7
Verbally abusive: 7
Manipulative/Self-Centered: 3 8 2
Lack of Motivation: 1
Truancy: 7
Lack of sleep: 2 6
Too much sleep: 1 4 3 5 6
Vomiting: 4 3 8 6
Incoherent Statements: 3 8 1 4 6