1.Short of breath as soon as you lie down Feeling unable to breathe deeply or out of breath when you get up in the middle of the night or in the morning. Especially when exerting or lying down, there is a feeling of pressure in the chest and you cannot breathe deeply, and you can only catch your breath if you sit up. Many patients have to pad their pillows or choose to sleep in a chair so as to feel more comfortable. 2, chest heaviness like a boulder This is the initial symptom of heart failure. However, when this feeling first appears, many patients do not know what to do and it is difficult to describe this abnormal feeling. Many patients feel a heavy pressure on their chest, similar to the feeling of “drowning”, and some patients feel as if their lungs are full of fluid when they take a deep breath. A small number of patients feel chest pain. Sudden tightening of clothing and shoes Clothes and shoes become tight and fat is a sign of swelling, which is one of the early symptoms of heart failure, but often difficult to identify because swelling can occur in many different parts of the body. An inexplicable and sudden increase in waist circumference and a sudden round and fat face and neck should be a sign of heart failure. 4. Palpitations or irregular heartbeat Rapid heartbeat, irregular heartbeat and palpitations are common symptoms of heart failure. Patients may feel that their heart is beating too fast and too hard, often accompanied by a sense of panic-like tension. Other similar irregular heart rhythm problems, including atrial fibrillation and atrial flutter, can be quite dangerous if left untreated. 5. Loss of appetite A feeling of fullness long after a meal, which may be accompanied by nausea, constipation, feeling sick to the stomach or abdominal pain. There is a feeling of pressure in the chest and abdomen, and you feel uncomfortable after eating. Fatigue can also cause heart failure patients to lose their appetite, and chewing food can feel tiring. 6, dizziness Dizziness or lightheadedness is the most common problem in heart failure. Patients feel that the whole world is spinning, and common complications include nausea or a feeling of motion sickness. If accompanied by palpitations or arrhythmia, prompt medical attention should be sought. 7. Anxiety Shortness of breath, incessant thoughts, sweaty palms and rapid heartbeat are all signs of anxiety. Some patients may mistake anxiety or stress as the main cause and ignore heart failure. 8. Coughing is also a major symptom of heart failure, but is easily confused with the flu or the common cold. A heart failure cough rarely occurs in the throat as much as a cold or flu cough, sometimes coughing up white foamy or thick sputum that may be bloody. Heart failure is more likely to lead to a dry cough that worsens when lying flat or rising. 9. Easily fatigued or weak throughout the day When exerting or after exertion, the patient is short of breath or feels difficulty in catching breath. Walking for a while, getting up or eating a meal can make heart failure patients feel tired. When the patient lies down, a “sinking feeling” begins to develop in the chest, followed by anxiety and inability to sleep, creating a vicious cycle. Heart failure patients have less urine and swelling of the lower extremities. The 24-hour urine output of heart failure patients decreases, while nocturnal urine increases. At the same time, cardiogenic edema mostly starts from the lower parts of the body (such as ankles and calves) and is depressed, while renal edema often appears first on the face. In addition, the urinary routine of cardiogenic edema is mostly normal, while the urinary routine of nephrogenic edema often has albumin.