Tsh 1.37 t4 6.9 t3 (liothyronine) 0.99. do i jave hypothyroidism? constantly tired, weight gain, falljng hair, aching muscles.

Hard to say: The TSH alone does not suggest that but do not know if the T4 and t3 (liothyronine) are total or free values. You can have all the thyroid values in the normal range and still have symptoms if you have elevated thyroid antibodies. Very often only part of the labs are done and the autoimmune component is missed. You may need additional labs done as your symptoms are consistent with thyroid disease.

Probably: I can't know for sure without knowing the lab's normal range for T3 (liothyronine) but that looks low. Most docs make a big mistake in thinking one is not hypothyroid if the TSH is normal. There are many reasons it is not a reliable test- see http://tinyurl.com/pxz8mkd As Dr. Rankin mentioned, it is wise to also check thyroid antibodies. Free T3 (liothyronine) & reverse T3 (liothyronine) can help too- see http://tinyurl.com/koyamo5

Maybe: those can be similar to symptoms of depression, low T, menopause, and many people who simply live in America, dont take time to eat well, sleep well, and exercise regularly. If these symptoms persist, may see endocrinologist for more uncommon causes, but also if there is room for improvement in lifestyle, try to make consistent changes even though you dont feel like it, for at least a month.