Irritability or anger

 

Continuous feelings of sadness and hopelessness

 

Social withdrawal

 

Increased sensitivity to rejection

 

Changes in appetite -- either increased or decreased

 

Changes in sleep -- sleeplessness or excessive sleep

 

Vocal outbursts or crying

 

Difficulty concentrating

 

Fatigue and low energy

 

Physical complaints (such as stomachaches, headaches) that don't respond to treatment

 

Reduced ability to function during events and activities at home or with friends, in school, extracurricular activities, and in other hobbies or interests

 

Feelings of worthlessness or guilt

 

Impaired thinking or concentration

 

Thoughts of death or suicide