More common: 1  Black, tarry stools. 2  blood in the urine or stools. 3  bloody vomit. 4  diarrhea. 5  joint pain. 6  reddening of the skin. 7  sores in the mouth or lips. 8  stomach pain. 9  swelling of the feet or lower legs.
Enlarged thyroid. Goiter (GOI-tur) is an abnormal enlargement of your thyroid gland. Your thyroid is a butterfly-shaped gland located at the base of your neck just below your Adam's apple.Although goiters are usually painless, a large goiter can cause a cough and make it difficult for you to swallow or breathe.nlarged thyroid. Goiter (GOI-tur) is an abnormal enlargement of your thyroid gland. Your thyroid is a butterfly-shaped gland located at the base of your neck just below your Adam's apple.
For example, if your body isnât getting enough iodine, your thyroid canât make enough thyroid hormone, but it will try to respond to rising TSH levels by working harder and harder anyway. This can cause your thyroid to become enlarged and develop into a goiter that looks like a protrusion or large swelling in your neck.