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Doctor insights on: Hypothyroidism Rapid Heart Rate

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I have a resting heart rate between 30-40's. I have hypothyroidism, some chest pains, and a family history of heart problems. 35, low activity

I have a resting heart rate between 30-40's. I have hypothyroidism, some chest pains, and a family history of heart problems. 35, low activity

See a MD: your symptoms of bradycardia and fatigue (low activity) may all be explicable by hypothyroidism. Pls see an endocrinologist to make sure u are chemically euthyroid, I.e. Your hypothyroidism is adequately treated. If bradycardia and low energy persist despite that, see a cardiologist ...Read more

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Dr. Su Fairchild
1,212 doctors shared insights

Hypothyroidism (Definition)

The thyroid gland is an endocrine organ located in the front part of the neck. Its role is to make thyroid hormones, which control the way cells use energy. Hyperthyroidism results when the thyroid gland is overactive and too much thyroid hormone is produced, which speeds up metabolism. This results in weight loss, a quick heartbeat, sweating, nervousness, ...Read more


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Can hypothyroid symptoms be fast heart rate and insomnia? Will adding cytomel to Synthroid (thyroxine) help?

Can hypothyroid symptoms be fast heart rate and insomnia? Will adding cytomel to Synthroid (thyroxine) help?

Maybe hyperthyroid: Hyperthyroidism (too much circulating thyroid hormone) will often produce rapid heart rate and insomnia - along with other symptoms like diarrhea, weight loss, and jitteriness. Low thyroid may cause weight gain, sluggishness, coarse/dry skin, and constipation. Ask your care provider about your symptoms. Please do not "freelance" with Cytomel or synthroid, (thyroxine) as this may harm you! lgromko md. ...Read more

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Would low ferritin but hemoglobin of 9.3 cause higher resting heart rate? Cardiologist said hearts ok. Slightly hypothyroid. Have thyroid antibodies.

Would low ferritin but hemoglobin of 9.3 cause higher resting heart rate? Cardiologist said hearts ok. Slightly hypothyroid. Have thyroid  antibodies.

Slight hypothyroid: Hemoglobin of 9.3 needs close attention . Slightly hypothyroid doesn't mean much. Either you have hypothyroidism or you do not. Please discuss these items with your primary doctor. I would appreciate hearing from you what develops. ...Read more

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I'm hypothyroid with a TSH of 0.01 and T4 in mid range , I have a slow heart rate , i suffer constipation , I do have anxiety am i over medicated?

I'm hypothyroid with a TSH of 0.01 and T4 in mid range , I have a slow heart rate , i  suffer constipation  , I do have anxiety am i over medicated?

Your : Tsh it's to low. Normal levels are between 0.4 -4.0, may vary between labs. Low TSH mean overactive thyroid. If you have anxiety you may be using to much thyroid medication. Consult your physician. ...Read more

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I am hypothyroid and on 150mcg/day levothyroxine. Tsh was .53 two weeks ago. I am still cold, have low bp, high heart rate, depressed, and insomnia.

I am hypothyroid and on 150mcg/day levothyroxine. Tsh was .53 two weeks ago. I am still cold, have low bp, high heart rate, depressed, and insomnia.

Need more lab tests: Tsh does not tell the whole story. Have your doctor check free T4 and free t3 (liothyronine). Those are your actual thyroid hormone levels and might more accurately reveal whether you are on enough medication or even the right medication. Levothyroxine is T4 and needs to be converted to t3 (liothyronine), so a low free T3 (liothyronine) means that you are not converting. Low T3 (liothyronine) can cause many of the symptoms you describe. ...Read more

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Is a TSH of 5.13=hypothyroid.Feel fatigued, low energy, slow resting heart rate, cold, anxiety/depression. 20 y.o.female.Dr.didn't say it was abnormal?

Is a TSH of 5.13=hypothyroid.Feel fatigued, low energy, slow resting heart rate, cold, anxiety/depression. 20 y.o.female.Dr.didn't say it was abnormal?

If your TSH level is: within the normal range according to the laboratory's parameters, your MD will consider it normal. It is slightly high for some laboratories. If so, your doctor may order a Free T4 & Ultrasensitive TSH to determine if you have Hypothyroidism & if you need other studies & treatment. Either way, ask your MD for referral to mental health providers for diagnosis & management of anxiety/depression. ...Read more

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Baby has rapid heart rate of 160!?

Baby has rapid heart rate of 160!?

How old is your baby: A heart rate of 160 can be perfectly normal in a newborn baby and with activity or fever in babies up to several months of age, so it all depends on how old your baby is and whether there have been changes in the baby's appetite or degree of alertness. Consult your pediatrician if your baby is otherwise happy playful and eating well or have him checked asap in an er if he is not stable. ...Read more

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What causes spontaneous rapid heart rate and what are the dangers?

What causes spontaneous rapid heart rate and what are the dangers?

A number of things: It many be that your heart rate increases from factors as simple as drinking too much coffee, or simply being tired or anxious. In some people, a conduction variation in the heart will suddenly bump the rate up. If you have shortness of breath, faintness, dizziness, lightheadedness, or chest/jaw/shoulder pain, get to the ER or call 911. ...Read more

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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


Dr. Jerome Zacks
604 doctors shared insights

Palpitations (Definition)

Heart palpitations are a clinical finding in which a person feels his heart beating strongly, feels his heart beating fast, or both. This can occur with anxiety disorders or heart conditions including ...Read more