What Does an AFib Episode Feel Like?

Atrial fibrillation (AFib) is the most common type of irregular heartbeat, affecting an estimated 10.5 million adults in the United States. Some people barely notice symptoms, while others experience intense and frequent episodes. 

Regardless of how atrial fibrillation presents, recognizing the signs and seeking timely treatment are essential to protect your heart health.

At Bridgewater Primary Care & Cardiology in West Bridgewater, Massachusetts, we specialize in primary care and cardiology that supports your long-term well-being. Here’s what you need to know about AFib, its symptoms, and why early intervention matters.

Recognizing the symptoms of AFib

AFib symptoms can range from mild discomfort to alarming sensations. Signs you should seek medical attention include:

1. Irregular or fluttering heartbeat

One of the most common signs of AFib is the sensation of your heart fluttering, quivering, or pounding. Patients often describe it as a feeling of butterflies in the chest or a fish flopping inside. This irregular rhythm can come and go or persist over time.

2. Rapid heart rate

While a typical heart rate is 60-100 beats per minute, AFib can cause your heart to beat much faster — 110-175 beats per minute — without physical exertion. This rapid rhythm may leave you feeling shaky or unsteady.

3. Chest discomfort

Chest pain or pressure isn’t always present with AFib, but when it occurs, it could signal that your heart is under stress. The discomfort may range from mild to severe and should never be ignored, especially when paired with other symptoms.

Additional symptoms to watch for include:

• Shortness of breath
• Sudden fatigue or weakness
• Dizziness or confusion
• Reduced ability to exercise

If you experience any of these symptoms or are anxious about future AFib episodes, contact Bridgewater Primary Care & Cardiology for a thorough examination.

What triggers AFib?

Your heart relies on a precise electrical system to maintain a regular rhythm. AFib occurs when the upper chambers of the heart (atria) beat out of sync with the lower chambers (ventricles). 

This disruption can stem from several underlying causes:

• Aging, particularly over 60
• Coronary artery disease
• High blood pressure (hypertension)
• Heart failure or valve problems
• Diabetes
• Thyroid imbalances
• Obesity
• Sleep apnea
• Excess caffeine or stimulant use

In some cases, AFib may not have an identifiable cause, known as lone or idiopathic AFib.

Managing and treating AFib

AFib itself isn’t always life-threatening, but it can lead to significant complications, such as stroke or heart failure, if untreated. Effective management focuses on restoring heart rhythm, controlling heart rate, and reducing the risk of blood clots.

We may recommend medications to regulate your heart rate, correct the rhythm, and prevent clot formation. Lifestyle changes like reducing caffeine, managing stress, and maintaining a healthy weight can reduce stress on your heart. 

We also identify and address underlying conditions such as high blood pressure or thyroid disorders to improve your heart function.

To learn more, schedule an appointment at Bridgewater Primary Care & Cardiology by phone or online today.