"Chalking it up to moodiness or trouble at work or tiredness is pretty common," says Carrie Bearden, PhD, an associate professor in residence of psychiatry and behavioral sciences and psychology at the David Geffen School of Medical at UCLA. "The disorder varies in severity."
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But hypomania, which is also a symptom of the disorder, is a high-energy state in which a person feels exuberant but hasn’t lost his or her grip on reality.
"Hypomania can be a pretty enjoyable state, really," Dr. Bearden says. A person’s mood can be elevated, they may have a lot of energy and creativity, and they may experience euphoria. This is the "up" side of bipolar disorder that some people with the condition actually enjoy—while it lasts.