Bipolar Disorder involves unusual shifts in mood state, energy level and behavior. These dramatic fluctuations may alternate between depression, normal mood, and elation and/or irritability. Bipolar Disorder ranges in severity. Bipolar I Disorder, which is characterized by recurrent episodes of both manic and depressive episodes, is the classic form of the disorder. Bipolar II Disorder is more common than Bipolar I, and consists of recurrent depressive episodes with at least one episode of "hypomania", which is less severe than a manic episode.
Symptoms - The elevated mood states of Bipolar Disorder are referred to as manic or hypomanic episodes. Manic episodes occur in Bipolar Disorder I and are more severe and disruptive to the individual’s functioning than hypomanic episodes.
Symptoms of both mania and hypomania may include:
During the depressed phase of Bipolar Disorder, the following symptoms may occur:
Symptoms of mania and depression sometimes occur together in what is called a mixed episode. In a mixed episode, a person may feel depressed and hopeless, while at the same time being agitated and energized. Severe cases of mania or depression in Bipolar Disorder can include symptoms of psychosis, such as hallucinations (e.g. hearing voices, believing something is there that isn’t) or delusions (persistent, false beliefs such as being convinced he/she leads the country, is a famous musician, etc).