http://youtu.be/GilpZ04GoS0 Stomach cancer is often either asymptomatic (producing no noticeable symptoms) or it may cause only nonspecific symptoms (symptoms which are not specific to just stomach cancer, but also to other related or unrelated disorders) in its early stages. By the time symptoms occur, the cancer has often reached an advanced stage (see below) and may have also metastasized (spread to other, perhaps distant, parts of the body), which is one of the main reasons for its relatively poor prognosis. Stomach cancer can cause the following signs and symptoms: Stage 1 (Early) Indigestion or a burning sensation (heartburn) Loss of appetite, especially for meat Abdominal discomfort or irritation Stage 2 (Middle) Weakness and fatigue Bloating of the stomach, usually after meals Stage 3 (Late) Abdominal pain in the upper abdomen Nausea and occasional vomiting Diarrhea or constipation Weight loss Bleeding (vomiting blood or having blood in the stool) which will appear as black. This can lead to anemia. Dysphagia; this feature suggests a tumor in the cardia or extension of the gastric tumor in to the esophagus.