Final answer:
Premenstrual syndrome (PMS) is the disorder that causes physical discomfort and psychological distress prior to a woman's menstrual period.
Step-by-step explanation:
The disorder that causes physical discomfort and psychological distress prior to a woman's menstrual period is known as premenstrual syndrome (PMS). PMS is a condition that affects many women and can include symptoms such as bloating, breast tenderness, mood swings, and fatigue.