Hypomania is an elated state without significant function impairment (i.e. no disruption to work or social rejection). Hypomania is diagnosed when symptoms last for four days or more. Hallucinations and delusion are not experienced.

Depression

Depressive symptoms are commoner than manic symptoms and the risk of suicide is greatly elevated during depressive episodes. Common symptoms include lowering of mood, poor concentration, disturbed sleep, loss of appetite and weight loss, reduced self-esteem and self-confidence, some ideas of guilt or worthlessness, slowed down thoughts and movements, agitation and loss of libido. 

When adults present with depression it is important to ask about periods of over activity or disinhibited behaviour, especially if over four days, as this may alter the diagnosis.