My daughter has no appetite, nausea, and weight loss. She had a ct that showed wall thickening in her jujunum (small intestine) up to 7mm. I am very concerned about cancer though the Dr, thought possibly Crohns. I thought nausea was more from the higher areas of the bowel, and the lower bowel and small intestines more responsible for diareah... Does anyone know? She is 21 years old. Thank you for answers.