- Cough
- Decreased alertness or concentration
- Decreased urine production
- Difficulty sleeping
- Fatigue, weakness, faintness
- Irregular or rapid pulse
- Loss of appetite, indigestion
- Nausea and vomiting
- Neck veins that stick out
- Need to urinate at night
- Sensation of feeling the heart beat (palpitations)
- Shortness of breath with activity, or after lying down for a while
- Swelling of the abdomen
- Swelling of feet and ankles
- Weight gain
Infants may sweat during feeding (or other activity).
Some patients with heart failure have no symptoms. In these people, the symptoms may develop only with these conditions:
- Abnormal heart rhythm (arrhythmias)
- Anemia
- Hyperthyroidism
- Infections with high fever
- Kidney disease