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Depression Health Center

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Mental Health Warning Signs

Symptoms of mental disorders vary depending on the type and severity of the condition. Some general symptoms that may suggest a mental illness include:

In adults

  • Confused thinking
  • Long-lasting sadness or irritability
  • Extremely high and low moods
  • Excessive fear, worry, or anxiety
  • Social withdrawal
  • Dramatic changes in eating or sleeping habits
  • Strong feelings of anger
  • Delusions or hallucinations (seeing or hearing things that are not really there)
  • Increasing inability to cope with daily problems and activities
  • Thoughts of suicide
  • Denial of obvious problems
  • Many unexplained physical problems
  • Abuse of drugs and/or alcohol

In older children and pre-teens

  • Abuse of drugs and/or alcohol
  • Changes in school performance, falling grades
  • Inability to cope with daily problems and activities
  • Changes in sleeping and/or eating habits
  • Excessive complaints of physical problems
  • Defying authority, skipping school, stealing, or damaging property
  • Intense fear of gaining weight
  • Long-lasting negative mood, often along with poor appetite and thoughts of death
  • Frequent outbursts of anger

In younger children

  • Changes in school performance
  • Poor grades despite strong efforts
  • Excessive worry or anxiety
  • Hyperactivity
  • Persistent nightmares
  • Persistent disobedience and/or aggressive behavior
  • Frequent temper tantrums

WebMD Medical Reference

Reviewed by Joseph Goldberg, MD on February 11, 2014

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