"Bipolar disorder is not a single disorder, but a category of mood disorders defined by the presence of one or more episodes of abnormally elevated mood, clinically referred to as mania. Individuals who experience manic episodes also commonly experiencedepressive episodes or symptoms, or mixed episodes in which features of both mania and depression are present. These episodes are normally separated by periods of normal mood, but in some patients, depression and mania may rapidly alternate, known as rapid cycling."
I may have discovered my problem. All these years, flip-flopping between personalities which are polar opposites, these might be the condition.