"PMS" stands for "premenstrual syndrome." The symptoms of PMS occur in women one to two weeks prior to her period, says Women's Health magazine. Common symptoms of PMS include bloating, breast tenderness, cramping, fatigue and irritability.
The exact cause of PMS is unknown, but according to Women's Health magazine, scientists believe that the symptoms stem from changing hormones and chemicals. Symptoms are more common in women who smoke; who lead lives that are stressful or lack exercise or sleep; and who consume high amounts of caffeine, sugar, alcohol, salt or red meat.
Steps that you can take to treat PMS include exercising, maintaining a healthy diet on a regular meal schedule, getting plenty of sleep, abstaining from smoking and alcohol, and exploring stress-reducing activities.