No stress, normal weight, stomach hurts when i eat or too empty, get feeling of 'anxiety', but relieved as soon as i burp. builds again, burp, then gone?

Gas pains.: You might be getting gas in your stomach if you eat too fast and when you burp , the pain is relieved. There is no nerve endings to the stomach or the gut so the only things that make it hurt is distention by gas tumor or fecal material. Sometimes, anxiety causes one to hyperventilate unknowingly and causes gas to accumulate in the gut.