Premenstrual dysphoric disorder, also called PMDD, causes extreme mood shifts. They can disrupt work and damage relationships. PMDD often starts 7 to 10 days before a period and goes on through the first few days of the period.

Besides common PMS symptoms, such as bloating and tiredness, PMDD causes extreme emotions. These can include being sad, hopeless, cranky or angry.

Prescription medicines such as antidepressants and birth control pills might help. So might lifestyle changes such as getting exercise, cutting back on caffeine, not drinking alcohol and not smoking.