Nausea causes an uneasy or unsettled feeling in your stomach, coupled with an urge to throw up or vomit. Nausea, vomiting, and/or an upset stomach are symptoms for many causes or conditions. Some possible causes of your nausea, throwing up and/or upset stomach may be:1  giardia. 2  bulimia.3  gastritis. 4  listeriosis. 5  hemophilia.6  peptic ulcer.ausea, vomiting, and/or an upset stomach are symptoms for many causes or conditions. Some possible causes of your nausea, throwing up and/or upset stomach may be: 1  giardia. 2  bulimia. 3  gastritis. 4  listeriosis. 5  hemophilia. 6  peptic ulcer.
Additional symptoms of neurogenic bowel include: 1  Abdominal distension. 2  Respiratory compromise. 3  Early satiety. 4  Nausea. Evacuation difficulty.  Unplanned 1  evacuations. Rectal bleeding. 2  Diarrhoea. Constipation.  Pain.
When these nerves are damaged, messages between the brain and digestive system are blocked. This prevents the bowels from working properly. The spinal cord runs from the base of the brain to the lower back. There are two main types of neurogenic bowel, depending on where along the spinal cord the damage occurs.