Read about the symptoms of an overactive thyroid (hyperthyroidism), which include anxiety, hyperactivity and feeling tired all the time.

November 30, 2022 - Understand what happens when your thyroid is overactive and learn about treatment for this condition.

April 29, 2022 - Difficulty sleeping: While we don't yet understand why, hyperthyroidism can cause sleep disturbance.⁵ You might take longer to fall asleep, have difficulty staying asleep, and be sleepy during the day. Other symptoms, such as hand tremors, may be bad enough to wake you up.

July 28, 2023 - There is a milder form of hyperthyroidism called “subclinical hyperthyroidism”. In Subclinical hyperthyroidism, the TSH is low but the T4 and T3 are normal. Some people may have symptoms from subclinical hyperthyroidism, but many people will not have any symptoms at all.

While “thyroid problems” can ... symptoms of thyroid dysfunction range from insomnia, constipation, and hair loss to fluid retention, fatigue and temperature intolerances....

3 weeks ago - Menstrual irregularity. A thyroid problem (whether underactive or overactive) often wreaks havoc on menstruation. With hyperthyroidism, a woman’s cycle may be shorter and lighter than normal.

To help you find early (and some not-so-early) signs of thyroid disease on your skin, hair, and nails, here’s a checklist.

This is a rare, but life-threatening condition. It can occur when hyperthyroidism goes untreated or under-treated. Symptoms of a thyroid storm include high fever, fast heart rate, dehydration, confusion/agitation and diarrhea.

October 7, 2025 - In older adults, hyperthyroidism is sometimes mistaken for depression or dementia. Older adults may have different symptoms, such as loss of appetite or withdrawal from people, than younger adults with hyperthyroidism.

September 15, 2025 - Thyroid hormones also influence the quality of your skin in various ways. For example, with hyperthyroidism, you may notice itchy and dry patches of skin. Your face may feel softer and swollen.

July 21, 2025 - In most cases, healthcare providers take a “wait and see” approach if your test results indicate you have subclinical hyperthyroidism. If you start to experience symptoms of hyperthyroidism, such as feeling nervous or anxious and heart palpitations, talk to your provider.

February 20, 2025 - Anxiety is common with hyperthyroidism. ... Studies show that if you have an untreated thyroid disorder, you're more likely to have complications when you're pregnant, such as a condition called preeclampsia. You also have greater chances of a miscarriage or stillbirth. You could give birth prematurely or have a low-birth-weight baby. ... Menstruation trouble can be a sign of a thyroid condition. Periods that are very light, very heavy, or irregular can all be symptoms.

September 16, 2025 - Learn about the tips to manage hyperthyroidism at home. Yes, in some cases. This is sometimes called 'subclinical' thyroid disease or can point to other issues. Some patients may have normal TSH but abnormal T3 or T4 levels, or their symptoms may be significant despite a TSH in the low-normal or high-normal range.

This is because most people who are treated for hyperthyroidism eventually develop hypothyroidism.The treatment causes the thyroid to become underactive. The symptoms include lethargy, unexpected weight gain, constipation and sensitivity to the cold.

4 weeks ago - Are you experiencing the signs and symptoms of an overactive thyroid? This condition may cause heart palpitations, weight loss, fatigue, hair loss and more. Learn these important symptoms, how to test for this condition and more in this post.

1 week ago - Hyperthyroidism develops when your body has too much thyroid hormone. Your thyroid gland, located at the base of your neck, produces hormones that control how the cells in your body use energy. When your thyroid is overactive, you may experience weight loss, changes in your heart rate, nervousness, and other symptoms.

January 3, 2025 - These are non-specific and can be present in autoimmune causes of both hyperthyroidism (Graves' disease) and hypothyroidism (Hashimotos' disease).4 · Doppler ultrasound may be used to image the thyroid gland, to confirm the presence of goitre and identify nodules.11 · Beta-blockers (commonly propranolol) are indicated in the management of thyrotoxicosis to provide symptomatic relief from the typical adrenergic symptoms (palpitations, tachycardia, tremor).4,12

Adults over age 60 may have different symptoms than younger adults. For example, they may lose their appetite or withdraw from other people. Sometimes this can be mistaken for depression or dementia. If hyperthyroidism isn't treated, it can cause some serious health problems, including:

July 29, 2025 - Hyperthyroidism accelerates your body’s metabolism. It is difficult to diagnose as the signs and symptoms are similar to other conditions. Download a tick-box version of hyperthyroid signs and symptoms Compare hypothyroid and hyperthyroid signs and symptoms.

This disorder occurs in about 1% of all Americans and affects women much more often than men. In its mildest form, hyperthyroidism may not cause noticeable symptoms; however, in some patients, excess thyroid hormone and the resulting effects on the body can have significant consequences.