Hi! I have seen your reports. Antibody tests help to know the cause of the disease. In your case, the thyroid gland is functioning less and the cause of this is a particular type of immune disorder, in which your body makes antibodies against your thyroid gland. However, your other tests are normal. But, if I were your doctor, I d first need to order TSH test. If that is normal, your dose is ok and we need to look for other causes. If that is high, I d increase your dose of levothyroxine first. Hope I have answered your question.