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15. A 24 year old patient has recurrent episodes of inflated self esteem, decreased sleep,increased goal directed activity a and racing thoughts, usually last a few days and representing a clear change in functioning but not marked impairment. The patient also has periods of depression,feelings of worthlessness , hypersomnia and hyperphagia. These symptoms last up to a week in duration. The patient reports that these mood episodes occur very frequently,perhaps as many as 20 episodes per year. Which of the following the most likely diagnosis
A) Cyclothymia
B) Bipolar I disorder, rapid cycling
C) Bipolar II disorder, rapid cycling
D) Borderline Personality disorder
What is Bipolar II disorder, rapid cycling?