Up to 80% women report having some symptoms prior to menstruation. These symptoms qualify as PMS in 20 to 30% of pre-menopausal women. Premenstrual dysphoric disorder (PMDD) is a more severe form of PMS that has greater psychological symptoms.PMDD affects three to eight percent of pre-menopausal women.remenstrual dysphoric disorder (PMDD) is a more severe form of PMS that has greater psychological symptoms.