Many thyroid patients on thyroid medication continue to experience symptoms of hypothyroidism. This is well known to many of us. Many thyroid patients are also aware that their TSH is not an indication of how well they are.
Specifically, getting TSH into the reference range is no guarantee of good health.
Thyroid patients who have struggled with their health for some time know their own bodies and they know that TSH can't be used as the main means of assessing whether they are healthy in terms of thyroid hormone action.