Anhedonia
loss of enjoyment/pleasure
anergia
lack of energy
amotivation
lack of motivation
diurnal variation
mood varies over the day
early morning wakening
waking up at least 2 hours before the expected/normal waking time
psychomotor retardation
subjective or objective slowing of thoughts and/or movement
stupor
the absence of relational functions such as action and speech
euthymia
normal mood