Drink lots of water and eat light meals comprised of whole grains and fresh, steamed or sauted vegetables, with SMALL portions of protein. Keep everything very light and eat six small meals during the day rather than 3 heavier ones. Drink water, water and more water. Avoid all sources of caffeine. No coffee or colas. If you want a hot drink, use herbal teas or light broth, such as consomme or bovril. Do this for a day or two and you will feel much better.