Vomiting
In severe cases of nausea, patients may also experience vomiting, and this symptom might be as severe as to prevent patients from eating much and contributing to a wasting syndrome we will address further, called cachexia. Continuous vomiting should be evaluated, especially when it starts all of a sudden, is maintained for a few days, and it is associated with abdominal pain. Colon cancer patients with vomiting problems might have an intestinal obstruction, which may lead to fecal vomiting when the obstruction of the intestinal lumen is total.