Kim has been experiencing an abnormally euphoric mood for quite some time. She remains hyperactive throughout the day even though she merely gets two hours of sleep at night. It is most likely that Kim is suffering from

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Kim's symptoms are consistent with bipolar I disorder, which is characterized by periods of mania or hypomania (abnormally elevated or irritable mood) and depressive episodes. The fact that she remains hyperactive despite only getting two hours of sleep at night is a further indicator of mania. Bipolar II disorder involves periods of hypomania and depressive episodes, but not full-blown mania. Persistent depressive disorder (formerly known as dysthymia) involves a chronically depressed mood, but not episodes of mania or hypomania. Major depressive disorder involves depressive episodes, but no history of mania or hypomania.

Kim Has Been Experiencing an Abnormally Euphoric Mood for Quite