The danger is that heart failure often develops gradually. Early symptoms are subtle and easily mistaken for stress, aging, or fatigue. Recognizing these early warning signs can save lives, allowing for timely treatment and lifestyle changes. Below are 13 symptoms of heart failure you may be ignoring every day.

13 Early Symptoms of Heart Failure

1. Shortness of Breath

Trouble breathing during activity, while lying flat, or even at rest is one of the most common early signs. Fluid buildup in the lungs reduces oxygen exchange, making breathing difficult.

2. Persistent Fatigue

When your heart doesn’t pump efficiently, your muscles and tissues receive less oxygen. Simple activities like climbing stairs or carrying groceries may leave you exhausted.

3. Swelling in Legs, Ankles, or Feet (Edema)

Poor circulation causes fluid to pool in the lower body. You may notice shoes feeling tight or sock marks on your skin.

4. Rapid or Irregular Heartbeat

An overworked heart may beat faster or develop irregular rhythms (arrhythmias). This can feel like palpitations, fluttering, or pounding in your chest.