In addition to losing appetite, the feeling of nausea can also affect those suffering from heart failure. This is again due to the fluid building up around the liver and congesting blood supply to the digestive system. The nausea also sends signals to the brain to cease consuming more food and can be quite uncomfortable. Nausea can also bring along abdominal pains and tenderness as the area around the stomach and intestines is placed under pressure due to the build-up of fluid. These symptoms are usually found later in the progression of heart failure and is a symptom that should certainly brought to your doctor’s attention.