When you are caring for a heart patient, you need to know what symptoms to call your doctor or go to the hospital for. If any of the following symptoms occur, you must be alert and contact your doctor immediately. When should I see a doctor for heart disease? Coronary arteriosclerosis, irregular heart rate, inflammation of the heart muscle, and heart failure are common types of heart disease, and each has different symptoms and pathological changes. Also, there are some differences in symptoms because each person’s health condition and pathology is different. Nonetheless, there are some common red flags for most heart disease symptoms. When caring for a heart patient, you need to know which symptoms to call your doctor or go to the hospital for. If any of the following symptoms occur, you must be alert and contact your doctor immediately: (1) Bloating and poor appetite, nausea and vomiting. (2) Feeling very tired and unable to perform daily activities. (3) Respiratory tract infection or cough that is getting worse. (4) Sudden increase in heart rate to more than 100 beats per minute. (5) Irregular heartbeat. (6) Chest pain and a feeling of pressure in the anterior chest area while at rest or in a calm state. (7) Difficulty in breathing during daily activities or at rest. (8) Sleep disturbance, such as insomnia or drowsiness. (9) Decreased urine output. (10) Irritability or even mental disturbance. (11) Sudden blurred vision or dizziness. Call 120 or go to the emergency room immediately when: (1) Chest pain and severe discomfort in the anterior chest area with shortness of breath, profuse sweating, nausea and vomiting. (2) Sudden increase in heart rate to 120-150 beats per minute, or accompanied by shortness of breath. (3) The shortness of breath is not relieved after rest. (4) Sudden loss of intuition or difficulty moving around. (5) Sudden onset of severe headache. Of course, another important measure is to record the number of the attending physician, the hospital number and “120” in a conspicuous place by the telephone so that you can get in touch with them quickly, because many people often forget the number in emergency situations.