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Doctor insights on: Rapid Heartbeat And Fever

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Dr. Mark Diamond
2,228 doctors shared insights

Fever (Definition)

Fever is the temporary increase in the body's temperature in response to some disease or illness. A child has a fever when the temperature is at or above one of ...Read more


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I get low grade fevers at night only. Fatigue, dizziness, tired, rapid heartbeat. I have been diagnosed with prediabetes, high cholostoral and anemia?

I get low grade fevers at night only. Fatigue, dizziness, tired, rapid heartbeat. I have been diagnosed with prediabetes, high cholostoral and anemia?

Further tests!: Your diagnoses don't explain your symptoms. Since it's not normal to have nighttime fevers, you need further testing. Please see your doc again and find out why you are sick. If you aren't satisfied with the answer, consider getting a second opinion. ...Read more

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When should I worry about side effects of new drug? Includes intermittent fevers and a racing heartbeat. It's been about 2 weeks

When should I worry about side effects of new drug? Includes intermittent fevers and a racing heartbeat. It's been about 2 weeks

Worry: I don't know what your medication is but these symptoms are concerning and should be evaluated. You must notify your physician about these symptoms as he/she is best qualified to advise you as to whether they are possible side effects or another medical problem unrelated to your medications. ...Read more

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Is this hot flashes with no sweat? I'm 47 and today I suddenly feel very, very hot & there's a spike in my bp/heartbeat but no fever. Is this menopaus

Is this hot flashes with no sweat? I'm 47 and today I suddenly feel very, very hot & there's a spike in my bp/heartbeat but no fever. Is this menopaus

Could be: Hot flashes are one of the first signs of the menopausal transition for many women. They are often but not always associated with sweating. They are actually referred to as hot flushes and you or others may notice that your face flushes when you have one. They are more common when you are stressed and are not associated with a fever. Many women say they feel like a furnace inside. Hope this helps. ...Read more

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My heartbeats have been getting to >100bpms-was about to faint twice. ECG showed sinus tachy. Got high fever for 24 hrs once. Is it serious?

My heartbeats have been getting to >100bpms-was about to faint twice. ECG showed sinus tachy. Got high fever for 24 hrs once. Is it serious?

Many causes: Sinus tachycardia can be a response to many things, ranging from infection to exercise to dehydration among a lot of other causes. If this is recurring, see your physician, who should be able to help you find the cause and the solution to this problem. ...Read more

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I'm on laxative multiple x daily due to bowels not working. Today very sick, slight fever, burning in upper abd., very nausea, heartbeat visible in ab?

I'm on laxative multiple x daily due to bowels not working. Today very sick, slight fever, burning in upper abd., very nausea, heartbeat visible in ab?

Really NOT good...: Before you contemplate long term laxative dependency, seek medical evaluation--rule out metabolic causes of constipation (e.g. Low thyroid or adrenal conditions), distinguish slow versus normal transit constipation, consider a primary rectal dysfunction that may be treatable with biofeedback, check for structural pathology or extrinsic impingement, or intermittent ileus (e.g. Pseudo-obstruction). ...Read more

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Have a feeling like blood is rushing down my legs so irritating blood work good and raised heartbeat. No fever , 5-11 155 lbs, what can be cause?

Have a feeling like blood is rushing down my legs so irritating blood work good and raised heartbeat. No fever , 5-11 155 lbs, what can be cause?

Unclear: There's not enough information in your question to speculate. Do you have a rash? Is it worse in certain positions? Do you have good distal pulses? Are your legs swollen? You need to be examined. Please see your doctor for an accurate diagnosis. ...Read more