Symptoms Of Stomach Cancer I'm Experiencing Sour Stomach Symptoms, But Not The Heartburn; What Can I Do To Alleviate This Problem?

I'm experiencing sour stomach symptoms, but not the heartburn; what can I do to alleviate this problem? - symptoms of stomach cancer

I am burping and stomach complaints, but no symptoms of heartburn. Only sour odor when burping. It also causes nausea, sometimes. I tried baking soda, antacids, and eating soft foods, but nothing seems to work to alleviate this problem.