You know I have. Before I went to the ER I had taken a laxative at my dr. advice. I completely emptied out my system with the exception of the gas. I don't get it. My dr. thought maybe there was something else wrong, so he told me to go to the ER. They did every test imaginable--they all came back neg. His conclusion was gas...so he gave me Nexium and sent me on my way. I haven't eaten a true meal in a week, but yet I am still have gas pains. Craziness!