Aura symptoms of heart attack patients may include weakness, chest discomfort, palpitations, shortness of breath, fever and gastrointestinal pain. Typical manifestations of heart attack are squeezing pain in the precordial area or suffocating sensation, near-death sensation, heart failure symptoms such as chest tightness, shortness of breath, etc. and shock symptoms such as blurred consciousness, pale skin, lowered blood pressure. 1. Heart attack generally refers to acute myocardial infarction. It is an extremely dangerous condition in which the coronary arteries are acutely blocked, causing myocardial ischemia and necrosis, and heart function is impaired. Acute myocardial infarction is mostly sudden, patients have more than 30 minutes of continuous anterior heart pressure pain or suffocation, dying feeling. 2. A few days before the onset of a heart attack, patients may have symptoms such as fatigue, chest discomfort, palpitations, shortness of breath, irritability and fever. It may also be accompanied by other symptoms such as epigastric discomfort, nausea and vomiting. 3. In the early stage of myocardial infarction, the classic symptom is pain in the anterior region of the heart that persists for a long period of time without relief and is not easily relieved by medications such as nitroglycerin, and most often occurs in the early morning. At the onset of heart failure symptoms such as chest tightness, shortness of breath, etc. and shock symptoms such as blurred consciousness, pale skin, lower blood pressure. Myocardial infarction must be detected, diagnosed and treated early. If the patient is not feeling well, please complete the relevant examinations immediately and follow the doctor’s instructions to standardize the treatment.