At first, you may barely notice the symptoms of hypothyroidism, such as fatigue and weight gain, or you may simply attribute them to getting older. But as your metabolism continues to slow, you may develop more-obvious signs and symptoms. Hypothyroidism signs and symptom may include: Fatigue.
http://www.mayoclinic.org/diseases-conditions/hypothyroidism/symptoms-causes/dxc-20155382
Hyperthyroidism (overactive thyroid) Hyperthyroidism - or an overactive thyroid, is a condition in which the butterfly shaped thyroid gland located within the neck begins to manufacture excess amounts of the thyroid hormones thyroxine and triiodothyronine.
http://www.nutritionist-resource.org.uk/articles/hyperthyroidism.html
Common symptoms of hyperthyroidism include restlessness, agitation, anxiety, tremors, weight loss despite an increased appetite, sweating, rapid heart rate, intolerance to heat, and. frequent bowel movements. Treatments for hyperthyroidism include antithyroid medications, radioactive ablation, and surgery.
http://www.medicinenet.com/hyperthyroidism/article.htm
Hyperthyroidism is a condition in which an overactive thyroid gland is producing an excessive amount of thyroid hormones that circulate in the blood. (Hyper means over in Greek). Thyroid hormones include thyroxine (T4) and triiodothyronine (T3), representing 99.9% and 0.1% of thyroid hormones, respectively.
http://www.medicinenet.com/hyperthyroidism/article.htm
Hyperthyroidism effects can be serious, causing long-term health complications for patients who go without treatment. Hyperthyroidism results when the body produces too many thyroid hormones. This elevates the body’s metabolic rate, causing symptoms such as a rapid heartbeat, inability to sleep, and hand tremors, according to Healthline.
http://www.newsmax.com/FastFeatures/thyroid-disease-long-term-effects/2016/02/16/id/714670/
Some common symptoms of hypothyroidism include. 1  fatigue. 2  weight gain. 3  a puffy face.  trouble tolerating 1  cold. joint and muscle pain. 2  constipation. dry 3  skin. dry, thinning  hair. decreased 1  sweating. heavy or irregular menstrual 2  periods. fertility 3  problems. 4  depression. slowed 5  heart  rate. goiter.
https://www.niddk.nih.gov/health-information/endocrine-diseases/hypothyroidism
Not to be confused with Hyperthyroxinemia. Hyperthyroidism is the condition that occurs due to excessive production of thyroid hormone by the thyroid gland. Thyrotoxicosis is the condition that occurs due to excessive thyroid hormone of any cause and therefore includes hyperthyroidism. Some, however, use the terms interchangeably.
https://en.wikipedia.org/wiki/Hyperthyroidism
Hypothyroidism, also called underactive thyroid, is when the thyroid gland doesn’t make enough thyroid hormones to meet your body’s needs. The thyroid is a small, butterfly-shaped gland in the front of your neck.
https://www.niddk.nih.gov/health-information/endocrine-diseases/hypothyroidism
Also 1  -. palpitations and or increased heart rate. 2  goitre, otherwise known as swelling of the thyroid gland. 3  excessive sweating and or an intolerance to heat.  unexplained weight loss despite an increase in appetite (please note, a small number of individuals with hyperthyroidism will actually gain weight)
http://www.nutritionist-resource.org.uk/articles/hyperthyroidism.html
Some of the most serious effects of hyperthyroidism impact the heart’s function. Rapid heart rate, atrial fibrillation (which occurs when the heart beat is abnormal), and congestive heart failure (when the body is unable to circulate the blood) may occur, according to the Mayo Clinic.
http://www.newsmax.com/FastFeatures/thyroid-disease-long-term-effects/2016/02/16/id/714670/
effects of hyperthyroidism
The most serious effects of hyperthyroidism impact the heart’s function.