Cyclothymia:

A mood disorder and a form of bipolar disorder. It is defined in the bipolar spectrum. Specifically, this disorder is a milder form of bipolar II disorder consisting of recurrent mood disturbances between hypomania and dysthymic mood. A single episode of hypomania is sufficient to diagnose cyclothymic disorder; however, most individuals also have dysthymic periods. The diagnosis of cyclothymic disorder is never made when there is a history of mania or major depressive episode or mixed episode. The lifetime prevalence of cyclothymic disorder is 0.4-1%. The rate appears equal in men or women, though women more often seek treatment.

Cyclothymia  is also a pain in the arse and severely screws up your life…

Dysthymic phase

Difficulty making decisions; problems concentrating; poor memory recall; guilt; self-criticism; low self-esteem; pessimism; self-destructive thinking; continuously feeling sad; apathy; hopelessness; helplessness; irritable, quick temper; lack motivation; social withdrawal; appetite change; lack of sexual desire; self-neglect; fatigue or insomnia

Euphoric phase

Unusually good mood or cheerfulness (euphoria); Extreme optimism; Inflated self-esteem; Poor judgment; Rapid speech; Racing thoughts; Aggressive or hostile behavior; Being inconsiderate of others; Agitation; Increased physical activity; Risky behavior; Spending sprees; Increased drive to perform or achieve goals; Increased sexual drive; Decreased need for sleep; Tendency to be easily distracted; Inability to concentrate

Ho Hum