Trying to tell the difference between what expected behaviors are and what might be the signs of a mental illness isn’t always easy. There’s no easy test that can let someone know if there is mental illness or if actions and thoughts might be typical behaviors of a person or the result of a physical illness.
10 Common Warning Signs of a Mental Health Condition
Each illness has its own set of symptoms but some common signs of mental illness in adults and adolescents can include the following.
Excessive worrying or fear
Feeling excessively sad or low
Confused thinking or problems concentrating and learning
Extreme mood changes, including uncontrollable “highs” or feelings of euphoria
Prolonged or strong feelings of irritability or anger
Avoiding friends and social activities
Difficulties understanding or relating to other people
Changes in sleeping habits or feeling tired and low energy
Changes in eating habits such as increased hunger or lack of appetite
Changes in sex drive
Difficulty perceiving reality (delusions or hallucinations, in which a person experiences and senses things that don’t exist in objective reality)
Inability to perceive changes in one’s own feelings, behavior or personality (”lack of insight” or anosognosia)
Abuse of substances like alcohol or drugs
Multiple physical ailments without obvious causes (such as headaches, stomach aches, vague and ongoing “aches and pains”)
Thinking about suicide
Inability to carry out daily activities or handle daily problems and stress
An intense fear of weight gain or concern with appearance (mostly in adolescents)