"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. this behavior has become increasingly worse especially since last year, around this time, kim was very severely depressed and did not leave the house for several weeks. it is most likely that kim is suffering from:

Bipolar I disorder

Explanation:

Bipolar I disorder is called a bipolar disorder or a manic depressive disorder. It is a psychological disorder. It is found in the same ratio in both males and females. In this disorder who suffers from bipolar disorder, the person has at least one episode of mania through life. At this period, The patient gets at the euphoric stage and abnormally on a high range of energy and elevated mood. In this type of disorder, the person suffers from a depressive phase as well. Both disorders occur in a cycle phase.  

Symptoms during the stage of mania:

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