I'm currently seeing a psychiatrist for a possible diagnosis in bipolar. But, before they can rule me as bipolar they're trying to rule out cyclothymic disorder. This is a mood disorder that displays bipolar symptoms. They psychiatrist called it baby bipolar. The following is a defination I found on a webpage. I hope it may help.

"People with cyclothymic disorder have, for at least 2 years (1 year in children and adolescents), the presence of numerous periods with hypomanic symptoms and numerous periods with depressive symptoms that do not meet criteria for a Major Depressive Episode."