The major symptoms of depression are
- Loss of interest, despondency
- Loss of energy, increased fatigability
- Almost constant sadness
Other symptoms may also appear:
- Changes in psychomotor activity (agitation or slowness)
- Decreased ability to concentrate
- Changes in appetite (decrease or increase)
- Trouble sleeping
- Recurrent thoughts of death or suicide
- Inexplicable feelings of guilt
- Loss of self-confidence or self-esteem
