TSH: TSH is a pituitary hormone that is part of a negative feedback loop. When you have too much thyroid hormone, your levels go down; too little, and TSH levels go up. With your TSH values going up, your thyroid function is going down. There are some additional tests to possibly explain why. Your doctor can do these tests and figure it out. You may need treatment with thyroid hormone replacement.
Answered 11/1/2015
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