Younger children

Older children

• Have frequent tantrums or are irritable much of the time
• Often seem fearful or worried
• Complain about frequent stomachaches or headaches with no known medical cause
• Are in constant motion and cannot sit quietly (except when they are engaged in an activity they enjoy, such as watching videos or playing video games)
• Sleep too much or too little, have frequent nightmares, or seem sleepy during the day
• Are not interested in playing with other children or have difficulty making friends
• Struggle academically or have experienced a recent decline in grades
• Repeat actions or check things many times (for example, repeatedly checking to make sure a door is locked) out of fear that something bad may happen

• Have lost interest in things that they used to enjoy
• Have low energy
• Sleep too much or too little or seem sleepy throughout the day
• Have periods of highly elevated energy and activity and require much less sleep than usual
• Spend more and more time alone and avoid social activities with friends or family
• Diet or exercise excessively or fear gaining weight
• Engage in self-harm behaviors (such as cutting or burning their skin)
• Smoke, drink, or use drugs
• Engage in risky or destructive behavior alone or with friends
• Have thoughts of suicide
• Say that they think someone is trying to control their mind or that they hear things that other people cannot hear