Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome (PMS). For most women, symptoms start about a week before their periods start. Then symptoms go away a few days after their periods start.
Doctors don't know why some women have PMDD and others don't. They also don't know why some women have worse symptoms than others.
Symptoms include mood swings, depression, and feeling grouchy or anxious. You may also have sore breasts, bloating and weight gain, or joint or muscle pain.
With PMDD, these symptoms seriously disrupt your life. They may affect your relationships, work, or school.
Home treatments can help you feel better. Regular exercise and healthy eating also can help.
Doctors often prescribe medicines for PMDD. Selective serotonin reuptake inhibitors (SSRIs) can relieve symptoms. So can low-estrogen birth control pills. If these don't help, your doctor may prescribe other medicines.