<unk> , or<unk>  disorder, is a mood disorder characterized by the co-occurrence of hypomanic and depressive symptoms over a period of at least two years, or one year in children and young adults. Symptoms must not meet the diagnostic criteria for manic/depressive episodes.<unk>  is considered a mild form of bipolar II disorder. There is evidence that<unk>  may be the most common form of bipolar disorder.
Cyclothymia
Dysthymia
Euthymia 
Bipolar disorder
Panic disorder
Munchausen syndrome
Tic disorder
Personality disorder