Emotional instability refers to frequent and intense fluctuations in a person's emotional state. Individuals experiencing this condition may find themselves feeling very happy one moment and deeply sad or angry the next, often without a clear reason. This unpredictability can affect daily life, relationships, and overall well-being. Commonly associated with mental health conditions like bipolar disorder or borderline personality disorder, emotional instability can lead to challenges in managing stress and coping with everyday situations. Treatment options often include therapy, medication, and support from loved ones to help individuals develop better emotional regulation skills.