Yes, what you described appears to be a pattern consistent with a diagnosis called "Cyclothymic Disorder." Cyclothymic Disorder is a milder form of bipolar disorder characterized by recurrent periods of hypomanic symptoms and depressive symptoms that do not meet the criteria for a major depressive episode.
In Cyclothymic Disorder, the hypomanic symptoms are not as severe as those seen in Bipolar I Disorder, and the depressive symptoms are not as intense or prolonged as in Major Depressive Disorder (MDD). Instead, individuals experience periods of low-grade hypomania (elevated mood, increased energy, but not to the level of mania) and periods of mild depressive symptoms (low mood, lethargy, sadness, etc.).
To meet the diagnostic criteria for Cyclothymic Disorder, these mood fluctuations must persist for at least two years in adults (one year in adolescents and children) without a gap of more than two months without any symptoms. During this time, the person should not have experienced a full-blown manic episode, a major depressive episode, or a mixed episode (which involves both manic and depressive symptoms).
Cyclothymic Disorder can still significantly impact an individual's life and functioning, even though the mood swings may not be as severe as in other forms of bipolar disorder or MDD. It is essential for people experiencing these mood fluctuations to seek professional evaluation and support. A mental health professional can provide an accurate diagnosis and develop an appropriate treatment plan to manage the symptoms and improve overall well-being. Treatment may involve therapy, medication, lifestyle changes, and mood monitoring.