Is a TSH level the only test that is used to monitor my hypothyroidism? My last level was 0.861 but I have been suffering from symptoms of fibromyalg

TSH. Tsh measurement is often used, in patients with known hypothyroidism being treated with replacement thyroxine, of systemic response, although exact TSH levels that are ideal vary from person to person. Although your TSH level is in the normal range, you should discuss overall thyroid function with your endocrinologist or pcp. This is independent of fibromyalgia.