Heart failure symptoms occur at stages C and D, while heart failure stage A and B are asymptomatic.[1] Symptoms in stages C and D can include:[2]
- Shortness of breath/coughing when lying down or with activity
- Fatigue and weakness
- Frequent urination
- Chest pain and palpitations (rapid or irregular heartbeat)
- Swelling of the lower legs and fluid retention
- Nausea and poor appetite
- Anxiety