Symptoms in heart failure are mainly caused by stagnation of the pulmonary circulation and/or stagnation of the corporal circulation, but also by insufficient oxygen supply to organs or tissues. 1, weight gain; 2, edema of the feet and ankles; 3, feeling of abdominal fullness; 4, jugular vein raging; 5, loss of appetite and indigestion; 6, nausea and vomiting; 7, shortness of breath, especially associated with activity; 8, insomnia; 9, shortness of breath that occurs after lying flat on your back for a while; 10, fatigue, malaise, and dizziness; 11, feeling of the heart skipping beats (palpitations); and 12, the pulse may feel irregular or rapid; 13, Coughing related to position, worse in the flat position and better in the high-rest position; 14, Low urine output and increased nocturia.