It is a state in which some women suffer from irritability, anger at trifles, mood swings, lassitude, sleeplessness, headache, nausea, constipation, bloating of the body (edema). Breasts become painful, lumpy and tender. These symptoms are observed 7-8 days prior to the menstrual cycle in some women. These symptoms are relieved after the onset of the menstrual flow. Causation The exact cause is...