Common thyroid problems involve abnormal production of thyroid hormones. That may be hyperthyroidism or hypothyroidism. symptoms of hypothyroidism including lethargy, low temperature, slow heart rate, slower mental processes, depressed mood, increased sensitivity to cold, tingling or numbness in the hands, constipation, heavy menstrual periods, or irregular menses, muscle ache or cramps, libido, or dry skin and hair, and more.People with hyperthyroidism typically have rapid heart rates, weight loss, and heat intolerance.
The thyroid gland can be visibly enlarged (goiter). You can also have elevated blood pressure, nervousness, and hand tremors etc.