Emotional Symptoms
Many women know their period is about to start by mood changes. Some women become oversensitive, irritable, angry, depressed or tearful. Others are nervous, have difficulty sleeping, or withdraw from social situations. Memory loss, trouble concentrating and even paranoia can occur in the time leading up to a new period starting, Massachusetts General Hospital explains. Antidepressants may help women with severe emotional premenstrual symptoms, the Merck Manual states.