Headaches, fatigue, dizziness, and stomach upsets are all symptoms of PMS, but they can also be symptoms of dehydration.
Water is an essential and often forgotten nutrient. Without it we could not last more than few days. Our bodies are made up of two-thirds water, and water intake and distribution is vital for hormonal function. You need to drink lots of water about 8 large glasses a day to keep your hormonal system working at its best.