When to see a doctor

See your doctor if you think you might be experiencing signs or symptoms of heart failure. Seek emergency treatment if you experience any of the following:

Chest pain

Fainting or severe weakness

Rapid or irregular heartbeat associated with shortness of breath, chest pain or fainting

Sudden, severe shortness of breath and coughing up pink, foamy mucus

Although these signs and symptoms may be due to heart failure, there are many other possible causes, including other life-threatening heart and lung conditions. Don't try to diagnose yourself. Call 999 or your local emergency number for immediate help. Emergency room doctors will try to stabilize your condition and determine if your symptoms are due to heart failure or something else.

If you have a diagnosis of heart failure and if any of the symptoms suddenly become worse or you develop a new sign or symptom, it may mean that existing heart failure is getting worse or not responding to treatment. This may be also the case if you gain 5 pounds (2.3 kg) or more within a few days. Contact your doctor promptly.