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.
Individuals with neuroblastoma may develop general signs and symptoms such as irritability, fever, tiredness (fatigue), pain, loss of appetite, weight loss, or diarrhea. More specific signs and symptoms depend on the location of the tumor and where it has spread. A tumor in the abdomen can cause abdominal swelling.