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.
Gravesâ disease. Another condition which causes the swelling of the thyroid gland is Gravesâ disease, which is an autoimmune disease. Here, the antibodies in the immune system would stimulate the thyroid gland to overproduce hormones in the thyroid gland.eople who have a swollen thyroid will manifest one or some of the following symptoms: 1  Migraine. 2  Excessive fatigue. 3  Abnormally heavy menstrual bleeding. 4  Swollen and stiff joints. 5  high cholesterol level. 6  Increased weight. 7  Cramps and weakness in the muscular region. 8  Constipation.