I think there is a lot of bad treatment about with thyroid - both on folk getting too easily "diagnosed" by GPs and put on treatment without really in depth investigation of whats going on, and by folk not being diagnosed when they should be. Also that standard synthetic thyroid treatments don't always work particularly well, and folk don't get properly monitored or given other options, so are ending up with sub-optimal treatment.

To my mind, anyone with any signs of thyroid dysfunction needs to be properly assessed, treated and monitored by a fully qualified endocrinologist, and that should include looking at a variety of different and more sensitive testing to really make sure that the treatment plan is addressing the issue properly.

Glad you finally got to the bottom of it though.