Stomach cramps, excessive intestinal gas and diarrhea caused by lactose intolerance can
be controlled by eliminating all dairy products from your diet for
three days. If this stops the cramping, start adding one product at a
time, for instance skimmed milk, low fat yogurt, cheese etc. Should the
cramping return, remove the last product added, and continue with other
products. In this way you will be able to identify which dairy products
cause the stomach cramps.
Stomach cramps which are caused by constipation can be treated by increasing your fiber intake. Eating more bran and other natural fibre, as well as drinking a lot of water, will improve your bowel movement considerably. Adding fiber to your diet may cause an increase in intestinal and stomach gas at first. Increase your intake gradually, and try other forms of fiber, like high-fiber bars, if you experience an increase of stomach gas and flatulence.
Caffeine can increase stomach cramps, as can stress. Reducing your intake of caffeine and getting some daily exercise, even if it is just a brisk daily walk, can reduce the incidence of stomach cramping considerably.