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The symptoms of hypothyroidism depend on the severity of the condition. Problems tend to develop slowly, often over several years. At first, you may barely notice the symptoms of hypothyroidism, such as fatigue and weight gain. Or you may think they are just part of getting older.
The symptoms of hypothyroidism can be different from person to person. And they often look like symptoms of other health problems. Because of that, a diagnosis of hypothyroidism doesn't rely on symptoms alone. It's usually based on the results of blood tests.
This rare, life-threatening condition can develop due to long-term, severe, untreated hypothyroidism. Its signs and symptoms include drowsiness followed by profound lethargy and unconsciousness. A myxedema coma may be triggered by exposure to cold, sedatives, infection or other stress on your body.
Hyperthyroidism happens when the thyroid gland makes too much thyroid hormone. This condition also is called overactive thyroid. Hyperthyroidism speeds up the body's metabolism. That can cause many symptoms, such as weight loss, hand tremors, and rapid or irregular heartbeat.
When the pituitary detects low thyroid hormones in the blood, it sends thyroid-stimulating hormone (TSH) to the thyroid to prompt an increase in thyroid hormone production. High TSH levels in the blood indicates hypothyroidism.
Thyroid storm happens when a sudden and drastic rise in thyroid hormones causes a number of effects in the body. They include fever, sweating, confusion, delirium, severe weakness, tremors, irregular heartbeat, severe low blood pressure and coma.
Hypothyroidism happens when the thyroid gland doesn't make enough thyroid hormone. This condition also is called underactive thyroid. Hypothyroidism may not cause noticeable symptoms in its early stages.
Most thyroid nodules don't cause signs or symptoms. But occasionally some nodules become so large that they can: Be felt; Be seen, often as a swelling at the base of your neck; Press on your windpipe or esophagus, causing shortness of breath or difficulty swallowing
This treatment usually causes thyroid activity to slow enough to make the thyroid gland underactive. That condition is hypothyroidism. Because of that, over time, you may need to take medicine to replace thyroid hormones.
For some people, hypothyroidism that hasn't been treated can lead to joint and muscle problems. Specifically, hypothyroidism may cause: Muscle aches, tenderness and stiffness. Joint pain and stiffness, particularly in the hands and knees in adults. Swelling of the small joints in the hands and feet.