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Doctor insights on: Why Does My Heart Beat Fast Out Of Nowhere

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Heart Rate (Definition)

Heart rate is a measurement of the number of times a person's heart beats in one minute. Normal heart rates vary with a person's age and with excitement and exercise. Abnormal heart rates are too slow, too fast, and/or irregular (too much ...Read more


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Why does my heart beat fast when I lay down after a long day?

Why does my heart beat fast when I lay down after a long day?

Heart fast supine: Need to know what you mean by fast? It may beat faster for a short time because when you assume the supine position the fluid collected in your lower extremities reenters your blood stream your heart must beat faster to move it around until you pee out the difference or until your BP and heart rate control systems thinks things are OK ...Read more

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Why does my heart beat fast when I'm eating like I'm nervous or scare? It never happen before.

Why does my heart beat fast when I'm eating like I'm nervous or scare? It never happen before.

Anxiety: is state of tension, apprehension, worry, uneasiness or fear. It may be related to anticipated danger or arise for no apparent reason. While mild episodes of anxiety are common and do not usually require treatment, more severe forms can be chronic and debilitating. Symptoms of severe anxiety: insomnia, chest pain, shortness of breath, nausea, palpitations, teeth clenching/grinding and headache. ...Read more

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Why does my heart beat fast if I get up to walk or do something is it because I'm overweight ?

Why does my heart beat fast if I get up to walk or do something is it because I'm overweight 
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Weight: Your weight could be contributing to an elevated heart rate with activity. Does it feel irregular? If associated with chest discomfort or shortness of breath, dizziness? If so, please see your MD. ...Read more

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I have anxiety. My question is when I feel fine, why does my heart beat fast? It makes me panic and it beats even faster.

I have anxiety. My question is when I feel fine, why does my heart beat fast? It makes me panic and it beats even faster.

Anxiety: The heart may beat faster for many reasons. The problem may be that you have come to associate rapid heart rate with panic. As you become more anxious it may be fueling the panic reaction. ...Read more

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Please explain why does my heart beat fast when i'm not even out of breath?

Please explain why does my heart beat fast when i'm not even out of breath?

Fast heartbeat: Can be many reasons, including anemia, thyroid problems, medication side effects, a heart condition, anxiety, and others. Labwork and exam would be very helpful. ...Read more

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Why does my heart beat fast and flushing after drinking alcohol?

Why does my heart beat fast and flushing after drinking alcohol?

Are you Asian? : There is a condition due to inability to metabolize alcohol call alcohol flush syndrome. Around 30% of asian descend people have it. Associated with flush, erythema and tachycardia. ...Read more

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Why does my heart beat fast when I am doing nothing. It seems to do it more when I lay down or are relaxing and I also get shaky hands and legs?

Why does my heart beat fast when I am doing nothing. It seems to do it more when I lay down or are relaxing and I also get shaky hands and legs?

Count it: The question here is: is your heart primarily beating out of rhythm or reacting to something else? Your shaky hands and legs, for instance, raises the question of low blood sugar (1 example) which would cause your heart to beat in the 100-160 range. If your pulse is 180 or above, it's a primary rhythm problem. A heart rhythm monitor (24 or 48 hour or 30 day) could sort this out as well. ...Read more