Hello.... This report of yours is absolutely normal.... TSH is the hormone secreted by the Pituitary gland in the brain.... TSH monitors the levels of T4 n T3 which are secreted by the Thyroid gland which is situated at the neck.... Whenever the T3 n T4 levels in our body go low.... Pituitary secrets TSH ... which is Thyroid Stimulating Hormone.... which stimulates the thyroid gland to secrete T3 n T4....