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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?

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

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Is that dangerous if my heart beat fast?

Is that dangerous if my heart beat fast?

It depends: Probably not but sustained fast heart rates might result in weakening of the heart. Some fast heart rates are from abnormal heart rhythms or other disorders such as high thyroid function. See your doctor who can deal with more specifics. ...Read more

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Why my heart beat fast? What are the symptoms?

Why my heart beat fast? What are the symptoms?

The symptoms of a: Fast heart rate can be nothing, or palpitations, light headed, fainting etc, but if you are otherwise healthy you probably only have the sensation of a fast heart rate (palpitations). Can't answer why but a simple EKG at your doctors office will be of great value. ...Read more

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Why does my heart beat so fast when I'm scared or nervous?

Why does my heart beat so fast when I'm scared or nervous?

Adrenaline: When we are scared or nervous, epinephrine and norepinephrine are released into our body, which increases our heart rate. ...Read more

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My heart beat fast in my neck?

My heart beat fast in my neck?

Carotid: You are probably just feeling the heart beat being transmitted to your carotid artery in your neck. ...Read more

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Why does my heart beat increase really fast at rare times for no reason?

Why does my heart beat increase really fast at rare times for no reason?

Arrhythmia?: You may have an arrhythmia such as supraventricular tachycardia (svt). Your doctor can have you wear a heart monitor to capture your ekg during your symptoms. ...Read more

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Please explain why does my heart beat really fast for no reason sometimes?

Please explain why does my heart beat really fast for no reason sometimes?

Possible anxiety: Causes of tachycardia are anxiety, panic disorder, high blood pressure, poor blood supply to the heart muscle due to coronary artery disease (atherosclerosis), heart valve disease, heart failure, heart muscle disease (cardiomyopathy), tumors, or infections
other medical conditions such as thyroid disease, certain lung diseases, electrolyte imbalance, and alcohol or drugs. ...Read more

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I've been having alot of symptoms for 3 years dyzziness headaches tired inthis I felt my heart beat fast and?

I've been having alot of symptoms for 3 years dyzziness headaches tired inthis I felt my heart beat fast and?

Complicated: Impossible to diagnose your illness in this setting. With chronic fatigue, dizziness, and headaches, a full evaluation is justified. Germany has an excellent healthcare system - I urge you to take advantage of it. Best wishes and Viel Gl├╝ck! ...Read more

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Why does my heart beat so fast when I wake up? I check my pulse when this happens, it's between 130 and 190.

Why does my heart beat so fast when I wake up? I check my pulse when this happens, it's between 130 and 190.

Need work up: You may have svt/or tachy arrhythmia. This is nor normal. Need work up from thyroid check up to cardiac evaluation, /ekg// holter monitor / echo/ event monitor /eps evaluations. ...Read more

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My heart beat fast and hard from walking from my couch to bathroom or kitchen, but when I sit down it slows down. But it beats fast when I bearly walk?

My heart beat fast and hard from walking from my couch to bathroom or kitchen, but when I sit down it slows down. But it beats fast when I bearly walk?

NOT NORMAL: See your doc for a complete physical and you will need evaluation obviously of your heart and pulmonary system, if u do not have a doc then go to the er and they will work you up and refer u. ...Read more

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Sometime I feel a big boom in my chest followed by a pause of 1-2sec then my heart beat fast and go back normal. What can cause this if heart tests ok?

Sometime I feel a big boom in my chest followed by a pause of 1-2sec then my heart beat fast and go back normal. What can cause this if heart tests ok?

PVC: The heart has a pacemaker (PM) or internal clock in the upper chambers (atria) that sends a signal to the lower chambers (ventricles) which is delayed so that the ventricles contract after the atria. Premature ventricular contractions (PVCs) can occur spontaneously or be triggered by adrenaline or drugs and are always followed by a compensatory pause to return the heart to its previous rhythm. ...Read more

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What does it mean if my heart beat fast when I'm not even out of breath?

??: Perhaps nothing. I'd like to know how fast the heart is beating, and is it steady or irregularly irregular. Many normal people have rates in low 100s. A 12 lead electrocardiogram would be most helpful to rule out a significant asymptomatic arrhythmia. Good luck! ...Read more

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My heart beat fast and when I saw a doctor he said that I have nothing :/?

Fast heart beat: Paroxysmal tachycardias are episodes of rapid heart beat that come and go. Often when the patient is seen the episode and all traces are gone. Sometimes we can find a cause and sometimes not. If its only happened once, it isn't necessarily productive to enter into a long search for what it was and what caused it. Discuss with your Doc... ...Read more

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How come my heart beat fast - I took vicodin - 3 hours later Paxil (paroxetine) and heart started racing?

No idea: There are "idiosyncratic" reactions to drugs, which mean that they are not common and only happen to certain susceptible individuals, usually for reasons that cannot be discovered. Ssri drugs like Paxil (paroxetine) can occasionally produce heart arrhythmias, and you should talk to your doctor. The vicodin is unlikely to have been responsible, although if the vicodin wasn't legally prescribed, anxiety might. ...Read more

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Possible reasons why my heart beat fast - I took vicodin - 3 hours later Paxil (paroxetine) and heart started racing?

Possible reasons why my heart beat fast - I took vicodin - 3 hours later Paxil (paroxetine) and heart started racing?

Many possibilities: Allergic reaction to vicodin; unrelated coincidental rhythm disturbance of the heart called arrhythmia; anxiety disorder, etc. These are nonspecific problems. ...Read more

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Whenever I get nervous or excited, anything that makes my heart beat fast, I would always have headaches and my forehead would either feel hot or cold?

Whenever I get nervous or excited, anything that makes my heart beat fast, I would always have headaches and my forehead would either feel hot or cold?

Fight or flight: This sound like it is an exaggerated hormonal normal response to stress. Have your doctor assess your Vital signs under stress (treadmill stress test). Some individuals have exaggerated responses requiring medical therapy (eg: beta blockers to counter act the sympathetic surge) ...Read more

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Need doctor's help! Will my adrenal glands make my heart beat fast?

Possible: Certain tumors of the adrenal gland may cause palpitation and fast heartbeat. This is however a rare cause of fast heartbeat. ...Read more

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I am taking antibiotics and anti-histamine pills, can that make my heart beat fast?

I am taking antibiotics and anti-histamine pills, can that make my heart beat fast?

Decongestant?: Was the antihistamine combined with a decongestant, such as pseudoephedrine? The latter will make your heart beat fast, otherwise the other 2 meds do not generally cause a rapid heartbeat. ...Read more