Report Chronic Intestinal Pseudo-Obstruction in Dysautonomia Discussion Posted July 19, 2012 There are motility tests (for example: manometry http://www.biomed.ca...f/51/51_541.pdf) which are used to test whether your bowels have motility issues. My POTS doctor says there are a number of gastrointestinal disorders that can be caused by autonomic nervous system problems. If you think your bowels work too slow or too fast, you can perhaps ask your doctor if he/she would schedule you to have bowel motility testing done. I have not had these as the gastroenterologist said I did not need them as it was obvious my bowels move way too slow. I would still like to have at least the small bowel manometry. I had a small bowel follow through, which I was told takes most people 1.5 hrs, it took me 6.5 hrs. It also took 4 days the barium left my system (and that was with the use of colonoscopy prep laxatives). I was told that the barium usually is out of your system in about 2 days. I had a colonoscopy to check for crohn's and the doctor said that my bowels were contracting weakly which he says is causing my severe constipation, severe abdominal pain and nausea.When I saw my POTs doctor (which was before I saw the gastroenterologist) and told him of my abdominal issues, he suggested that I might have pseudo-obstruction. He said because the autonomic nervous system controls the bowels, it is possible that sometimes, it can cause those nerves not to work right, causing a pseudo-obstruction which are episodic in nature and are hard to see because there is no mechanical damage.