Emotional dysregulation is difficulty managing the intensity, duration and expression of emotional responses. Reactions arrive faster, feel stronger and settle more slowly than the situation seems to warrant, spanning frustration, hurt and excitement alike.
Although not a formal DSM-5 criterion, emotional dysregulation is one of the most impairing features adults with ADHD report, affecting relationships and work. It frequently improves alongside core symptoms with treatment, which is why clinicians ask about it during assessment and reviews.