Stabbing knives, white-hot rage, and debilitating fear are all descriptions used by ADDitude readers to convey the unseen and often unappreciated power of RSD — or rejection sensitive dysphoria. RSD is the term used to describe extreme emotional sensitivity and pain triggered by the perception (not always the reality) of criticism and/or rejection. At its worst, RSD can imitate a full, major mood disorder complete with suicidal ideation — and practitioners are only beginning to recognize and address it.