I called my gastroenterologist and told him about the massive doses of laxative I have been taking. And that the tech. that did my urodynamics test told me I was packed so full of backed up stool, she was surprised I could still eat, or wasn't in constant pain.So, he said he would schedule me for this manometry test on th 29th. Which consists of having a baloon inflated in your rectum, and having you poop it back out, to test your rectum muscles.I was wondering if anyone had this test done before. And what happened and what were your results?