Heartburn is a gastrointestinal or digestive issue. It typically occurs after people eat when the stomach acid backs up into the esophagus and causes ... Heart conditions Heart conditions can present ...
Some other lung-related conditions known to cause chest discomfort include: Pneumonia: This infection inflames the air sacs in your lungs and can make your chest hurt when you breathe or cough.
Other early symptoms of stomach cancer, as outlined by Macmillan Cancer Support, include a loss of appetite, feeling full quickly, unexplained weight loss, pain or swelling in the upper abdomen, ...