Premenstrual syndrome, or PMS, describes symptoms that show up before your period. Symptoms can be based on emotions such as irritability or depression, or you may have physical symptoms like breast pain or bloating. These symptoms usually arise one to two weeks before you start your period and return at the same time each month. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.