PMS stand for Premenstrual syndrome which is the medical term used to refer to the unpleasant and uncomfortable symptoms a woman feels before menstruation. The PMS symptoms are varied and around 150 separate symptoms have already been identified. The symptoms can be of two types: physical and psychological. Some of the most common physical symptoms are headaches, breast tenderness, bloating, back pain, muscle pain etc. The psychological symptoms include depression, aggression, anxiety, mood swings etc. These PMS symptoms usually appear from up to two weeks before menstruation and disappear upon the onset of menstruation. For some women, these PMS symptoms so severe that they hinder her usual lifestyle. In this case, the disorder is referred to as PMDD.

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