Managing a household wasn't easy for Anne Rowe, of Fairhope, when she found herself feeling tired all the time, and short of breath.

"It had gotten to where I couldn't walk completely throughout the house without having to stop to catch my breath," Anne Rowe explained to FOX10 News.

"It kept saying that I was in AFib and at first I didn't really believe it but then I decided I would go to my doctor."

That it was her Apple Watch. The built-in ECG (electrocardiogram) reading her heart rhythm and detecting the problem in 30-seconds...just from the touch of her fingertip.

An EKG by doctors confirming, she was indeed in AFib, or atrial fibrillation. Her heart rate...irregular...and blood-flow...poor.

She later had open heart surgery to replace her mitral valve and is now recovering well with regular heart rhythm. And it's all thanks in part to a Christmas gift from her husband.

Atrial fibrillation (also called AFib or AF) is a quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related complications. At least 2.7 million Americans are living with AFib.

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Some people with atrial fibrillation have no symptoms and are unaware of their condition until it's discovered during a physical examination. Those who do have atrial fibrillation symptoms may experience signs and symptoms such as:

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