FS021, January 2009

Premenstrual Syndrome and Premenstrual Dysphoric Disorder

What is premenstrual syndrome (PMS ) and premenstrual dysphoric disorder? Most women feel physical or mood changes during the days before their menstrual period. When these changes affect normal life, they are known as PMS. An extreme or more severe form of PMS is called premenstrual dysphoric disorder. You may experience hormonal shifts during your menstrual periods that may result in mood swings, headaches, fatigue, bloating, acne, breast soreness, food cravings, thirst, diarrhea, or nausea. You may have some or none of these symptoms, and how you feel may vary from month to month.