My endocrinologist seems to think that if the hemithyroidectomy is done and most of the left lobe is left in, it's "50-50" as to whether I will need synthroid, and I will know based on how I feel within two weeks of surgery.
For the hypothyroid folks, what symptoms will indicate that my remaining thyroid lobe is not getting the job done on producing enough thyroid hormone?
By the way, my presurgery blood labs showed my thyroid hormone function is "completely mid-normal" according to my endocrinologist. I guess that cancerous nodule isn't impacting on the hormone production.