Two weeks before her menstrual period, margeret often suffers from PMS. The abbreviation PMS stands for Premenstrual syndrome .
Premenstrual syndrome is a combination of emotional, physical, psychological, and mood disturbances that occur after a woman's ovulation, typically ending with the onset of her menstrual flow. The most common mood related symptoms are irritability, depression, crying, oversensitivity, and mood swings.