I recently went to the hospital and told them I was experiencing severe stomach pain followed by headaches and nausea. I know that I am constipated as well, however, I have tried many enemas, laxatives, and medicines from the hospital as well as from my normal stomach doctor. I have this problem all the time, at least a few times a month and I just want to know why and how to fix it. Eating more fiber and drinking more water has not helped in the past either.