What kind of symptoms are not angina? 1.The patient points out or circles the pain area with one finger, which is a point, a line, a small piece or a symmetrical point of pain in the front and back of the chest. 2.The pain starts from the back of the shoulder and extends to the front chest, and the back of the shoulder is sore with numbness in the left arm; 3.The pain is needle-like or knife-like; 4.It lasts for a few seconds or up to several hours; 5.Some patients complain of chest tightness or pain lasting for several hours or a whole day, or even several days; 6.The pain is mostly at rest or at rest after activity or at night, and often some patients complain of sudden boring awakening during sleep at night, which can be relieved after sitting up for a few minutes, and there is no such symptom during activity. The symptom is not present during the activity; 7. It takes more than 10 min to take nitroglycerin.