Definitions
Premenstrual dysphoric disorder
Overview
The cause of PMDD isn't clear. It's possible that hormonal changes worsen underlying mood disorders such as anxiety and depression.
Symptoms
PMDD causes extreme mood shifts that can disrupt work and damage relationships. Symptoms include extreme sadness, hopelessness, irritability, or anger, plus common PMS symptoms.
Treatments
Prescription drugs and lifestyle changes may help.