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Doctor insights on: What Causes Heart To Pound Fast

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What would cause my heart to pound hard and fast?

What would cause my heart to pound hard and fast?

Arrhythmia ?: Would recommend further evaluation which may include a holter or event monitor. ...Read more

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What would cause my heart to pound rapidly when reasting?

What would cause my heart to pound rapidly when reasting?

Many possibilities: There are many possible causes of abnormally fast heartbeat, some medical and some psychological (e.g., anxiety or panic disorder). If it isn't clearly associated with being upset or anxious, you need a medical examination. ...Read more

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Why is it that my heart now beats slow, really hard, and sluggish, but several months ago it was beating fast and in rythym, feels diff, any causes?

Why is it that my heart now beats slow, really hard, and sluggish, but several months ago it was beating fast and in rythym, feels diff, any causes?

Heartbeat: There is daily and even hourly heart beat variation. Emotion, exercise ,stress, illness can all effect heart rate, as can medications and thyroid status. But sometimes even when we think our heart is beating fast ,it s really isn't. Check your pulse at the times you think it is beating fast. May consider EKG f/u w/doc urgent care. ...Read more

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Heart was beating fast. Like every three beats i felt it take a fast pause then beat again three beats. No pain. Beats normal now, what could b cause?

Heart was beating fast. Like every three beats i felt it take a fast pause then beat again three beats. No pain. Beats normal now, what could b cause?

Good description: You are accurately describing a "regularly irregular" rhythm which is also called "trigeminy" if the skip is every 3rd beat, and "quadrigeminy" if it's every 4th. This can be of either atrial or ventricular origin. If it recurs, you should have a 24 hour recording of your heart rhythm (holter) to better characterize it. ...Read more

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What causes your heart to increase to slightly over 100 and you can feel it race/pound when sitting and not changing position? Then it comes back down

What causes your heart to increase to slightly over 100 and you can feel it race/pound when sitting and not changing position? Then it comes back down

Atrial fibrillation: Tell your doc what you just mentioned and ask for either a holter or event/loop monitor. The former works best if you have symptoms daily while the latter works best if you have symptoms every few weeks to a month. Atrial flutter & frequent pvcs can also do this. But it's still best to see your doctor for analysis. ...Read more

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Why does an over active thyroid cause your heart to beat fast ?

Why does an over active thyroid cause your heart to beat fast
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Sympathetic nerves: Thyroid hormone stimulates the sympathetic nervous system. Increased sympathetic nervous system activity increases the heart rate. There is also evidence that thyroid hormone acts on the heart muscle directly to increase the strength of contraction and the rate of contraction (makes it beat harder and faster). ...Read more