Early stage stomach cancer rarely causes symptoms, making early detection very d ifficult. Stomach cancer may present vague gastrointestinal symptoms or may m imic other conditions, such as gastroesophageal reflux disease (GERD), gastritis or a peptic ulcer. Signs and symptoms of stomach cancer can include: a sense of fullness after ea ting small amounts, discomfort or pain in the upper abdomen, nausea and vomi ting and/or bloating after meals, loss of appetite and/or unexplained weight loss, indigestion, heartburn or diffi culty swallowing, vomiting blood or blood in the stool, and weakness and fatigue. Most of these symptoms may be caused by things other than stomachRead More →