1, pain characteristics: pressure-like pain, pressure, boredom or tightness, often accompanied by anxiety or near-death fear. Needle-like pain or throbbing pain is mostly not angina pectoris. If the pain attacks during activity and requires stopping to stand or squatting to rest to relieve; if the patient tosses and turns and is restless during the pain attack, it is generally not angina. If the painful area is accompanied by pressure pain, it is generally not angina. 2.Site.