Depression-Symptoms

Duration of Illness > 2 week to establish a diagnosis of depression
Sleep Disturbances-Usually Insomnia [Early morning Awakening, reduced latency of REM Sleep]
Loss of interest-Loses interest in activities which used to interest him earlier [Anhedonia]
Guilt-Excessive Guilt Feelings
Lack of energy-Decreased energy levels with easy fatigability
Cognition / Concentration-Decreased energy levels with easy fatigability
Appetite-Usually Decrease Appetite and weight loss
Psychomotor-Psychomotor agitation [Restless] or retardation
Suicide-Suicide thoughts and sadness of mood

Most critical symptoms of depression: Mnemonic-SWAG

S-SUICIDE

W-WEIGHT LOSS

A-ANHEDONIA

G-GUILT