For the difference between stomach pain and angina: 1, stomach pain is often epigastric pain or pain under the glabella, the nature of burning pain, dull pain, distension, sharp pain or hunger, mostly located in the upper middle abdomen, can be right or left, and is mild to moderate persistent pain, and regular, after eating or taking antacids can be relieved, often accompanied by acid reflux, belching, bloating, hiccups, etc. 2, angina is located in the anterior region of the heart, the It can be radiated to the back of the left shoulder, or to the little finger, the inner part of the left arm, the cervical pharynx, the jaw, etc. It generally presents a feeling of pressure, chest tightness, tightness, or burning pain, and each attack lasts 3-5 minutes, often triggered by activity, emotional excitement, cold, etc. It can be relieved after rest and removal of these triggering factors.