If you have heart failure, call your doctor if you notice any of these signs: • Sudden weight gain (2–3 pounds in one day or 5 or more pounds in one week) • Extra swelling in the feet or ankles • Swelling or pain in the abdomen • Shortness of breath not related to exercise • Discomfort or trouble breathing when lying flat • Waking up feeling short of breath • Coughing or wheezing • Increased fatigue • Mental confusion • Loss of appetite