d suggest you talk to your doctor about the possibility of
Central hypothyroidism, which is a problem
with the pituitary/hypothalamus axis, in which there is not enough TSH, from the pituitary gland, to stimulate the thyroid to produce adequate thyroid hormones. Central hypothyroidism is, often, missed, because doctors only really look at the TSH and seeing it low in the range, they assume the patient is fine, when, in fact, they are not.