PMS or premenstrual syndrome are symptoms that a woman experiences a week or couple of weeks before the menstrual period. The symptoms experienced are breast tenderness, tiredness, acne, irritability, mood swings, etc.
Premenstrual Syndrome (PMS): Know Your Symptoms
Women are always said to be complex. It is because of the hormones that are taking a roller coaster ride throughout the month.

Novel Approaches to Managing Premenstrual Syndrome - An Insight
The premenstrual syndrome causes significant distress in females. The article discusses the new pharmacological approaches to the management of the same.
Premenstrual Dysphoric Disorder - Symptoms, Causes, Diagnosis, Treatment and Complications
Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome. This article explains the cause, symptoms, diagnosis, treatment, and complications of PMDD.