Go to any of the medical sites: Mayo Clinic, American Thyroid Association, The Endocrine Society, American ssociation of Clinical Endocrinologists.
"What are the symptoms of hypothyroidism?
Hypothyroidism occurs when the thyroid gland produces too little thyroid hormone. Symptoms may include any of the following: feeling run down, slow, depressed, sluggish, cold, tired, having dry skin and hair, constipation, muscle cramps, or weight gain. Women may have a heavier menstrual flow. Some patients have a swelling in the front of the neck due to thyroid enlargement (a goiter)" ATA.