Mercury can cause memory loss, loss of coordination, vision problems
macular degeneration.
There is a wealth of information online about hypothyroidism and weight loss. Check out the Wikipedia page at http://en.wikipedia.org/wiki/Hypothyroidism and look into the references it uses (at the bottom of the page) to learn more.
Hypothyroidism causes you to retain water that leads to bloating.
Hypothyroidism does not cause mental "retardation". MR is caused by genetics usually. Hypothyroidism is treatable.
Fatigue, weakness, dry hair, dry skin, hair loss, muscle cramps, constipation, depression, irritability, and memory loss are all common symptoms of hypothyroidism.
The resulting vision loss is rapid and progressive, but only temporary
Many common symptoms of hypothyroidism are dry hair and skin, weight gain, hair loss, muscle cramps and aches, depression, constipation, memory loss, decreased libido, weakness, and more.
Infections that depress thyroid hormone production usually cause permanent hypothyroidism.
Removal of the thyroid gland because of cancer or other thyroid disorders can result in hypothyroidism.
Pyometra, is a primary disease of the skin and haircoat. Also Hypothyroidism (Deficiency of the Thyroid hormone) will cause hair loss over the back of the animal.
What would cause the center of one eyed to go black and lose the site