Endoscopic image. Many people with<unk>  experience no symptoms at all. However, upper central abdominal pain is the most common symptom; the pain may be dull, vague, burning, aching, gnawing, sore, or sharp. Pain is usually located in the upper central portion of the abdomen, but it may occur anywhere from the upper left portion of the abdomen around to the back. Other signs and symptoms may include the following: *Nausea *Vomiting (may be clear, green or yellow, blood-streaked or completely bloody depending on the severity of the stomach inflammation) *Belching (does not usually relieve stomach pain if present) *Bloating *Early satiety *Loss of appetite *Unexplained weight loss
Gastritis
Peptic ulcer disease
Gingivitis
Pancreatitis
Stomatitis
Myocardial infarction
Rhinitis
Biliary colic