sharon, My 7 yr.old son has severeconstipation, which began about 1 year ago, and is getting worse. We now use laxitives often. He also gets headaches often and I have done much reading about yeast overgrowth in the intestines and candida. My son has had a lot of illnesses the past year and required a lot of broad spectrum antibotics. If your son has had or lot of antibotics or poor diet, this could be his problem. There's a lot of info. on net about candida and natural herbal remedies. I'm now giving him a lot of herbs for the candida and adding a lot of yogurt, which adds healthy flora. some good herbs are phyllium, flax seed, rhubarb. Prunes have a natural laxitive. magnesium is good also. Good luck.