Manic Episode: An episode of intense elevated mood in which a person feels excessively happy, has lots of energy, and shows significantly increased activity levels.
Bipolar II Disorder:A type of bipolar disorder where individuals experience depressive episodes shifting back and forth with hypomanic episodes, but never a full manic episode.
Mood Disorders:Psychological disorders characterized by emotional extremes such as major depressive disorder, manic phase of bipolar disorder etc.