The pain that may accompany your period is usually called cramps. Prostaglandins are hormones that are released from the endometrium and cause the contractions of uterine muscles which may result in a cramping sensation. Some symptoms are bloating, breast changes, headache and fluid retention . The sodium and potassium levels in our saliva change. During menstruation, the sodium levels are high while the potassium levels are lower.
Weight gain is due to bloating which is the result of retention of sodium, salt and water.
A diuretic such as midol PMS can be taken to relieve the retention of water. The breast is also sensitive right before menstruation. Loose bowel movements and nausea may occur which is the result of the prostaglandins affecting the intestinal wall. Do not eat because gluten is hard to digest and may cause allergic reactions. There are some lifestyle and dietary changes that can moderate general cramps.