The persistent feeling that characterizes major depression can lead to a range of behavioral and physical symptoms. These may include changes in sleep, appetite, energy level, concentration, daily behavior, or self-esteem. Depression can also be associated with thoughts of suicide of sadness or loss of interest
Mood:
anxiety, apathy, general discontent, guilt, hopelessness, loss of interest, loss of interest or pleasure in activities, mood swings, or sadness
Behavioral:
agitation, excessive crying, irritability restlessness, or social isolation
Sleep:
early awakening, excess sleepiness, insomnia, or restless sleep
Whole-body:
excessive hunger, fatigue, or loss of appetite
Cognitive:
lack of concentration, slowness in activity, or thoughts of suicide
Weight:
weight gain or weight loss Also common: poor appetite or repeatedly going over thoughts