<s>[INST] What are Symptoms of Heart Failure?
 [/INST] When a person develops heart failure, the heart and body try to compensate for the lack of blood flow. The heart may enlarge and pump faster, blood vessels in the body may narrow to keep blood pressure up and the body may divert blood away from less vital organs to preserve blood flow to the heart and brain.

During this time, there may be no symptoms at all. Eventually, though, these compensating measures won't be enough. According to the Mayo Clinic, the following symptoms could follow:

Shortness of breath.
Fatigue and weakness.
Rapid or irregular heartbeat.
Swelling in the legs, ankles and feet.
Persistent cough, especially at night.
Coughing up pink, foamy mucus.
Lack of appetite, chronic indigestion and nausea.
Weight gain due to excess fluid.
Increased need to urinate at night.
Swollen abdomen.
Difficulty concentrating.
Chest pain.
If you notice any of these symptoms, you should call a healthcare professional right away. Source: ABBOTT. Link: https://www.abbott.com/corpnewsroom/healthy-heart/6-heart-failure-questions-answered.html. Field: Cardiovascular. Disease: Heart Failure </s>