I can share some possible explanations for extreme mood swings:
Bipolar disorder: Bipolar disorder is a mental health condition characterized by alternating periods of depression and mania (or hypomania). During manic or hypomanic episodes, individuals might experience intense happiness, high energy levels, impulsive behavior, and decreased need for sleep. These episodes can be followed by depressive episodes.
Borderline personality disorder (BPD): BPD is a personality disorder marked by unstable moods, impulsive behavior, difficulty in relationships, and a strong fear of abandonment. People with BPD can experience rapid and intense mood shifts.
Cyclothymic disorder: Cyclothymic disorder is a milder form of bipolar disorder, where individuals experience recurrent mood swings between mild depression and mild mania.
Substance abuse or withdrawal: Certain substances, including drugs and alcohol, can cause extreme mood swings when used or during withdrawal.
Hormonal imbalances: Fluctuations in hormones, particularly in conditions like premenstrual syndrome (PMS) or premenstrual dysphoric disorder (PMDD), can cause intense mood changes.
Stress and trauma: Significant stress or past traumatic experiences can lead to emotional dysregulation and mood swings.
Other mental health conditions: Certain other mental health disorders, such as major depressive disorder or generalized anxiety disorder, can involve intense mood shifts.
It's crucial to consult a mental health professional for a comprehensive evaluation if you are experiencing extreme mood swings. They can help identify the underlying cause and provide appropriate diagnosis and treatment options. Treatment may include psychotherapy, medication, lifestyle changes, and coping strategies to manage and stabilize your moods effectively. Remember that seeking help is a positive step towards understanding and improving your emotional well-being.