Nausea and vomiting.... In the past year I have started feeling nauseous almost all the time. I had a full workup done for it and nothing was found wrong. They did a gastric emptying study, CT scan on abdomen, ultra sound, endoscopy, colonoscopy all on my abdomen. In addition to that they did a CT scan and an MRI on my brain and found nothing wrong. I'm only having 2 bowel movements tops a week and almost always requiring a fleet enema to initiate. 