To heal the thyroid, or anything really, often takes quite a bit of work. Not everyone wants to do it. Lifestyle changes are required, some belief systems are hard to be given up when they need to be. An example would be iodine,, its often a bone of contention to hypoT folks who have read about it but do not read how it only applies to a certain type of hypothyroidism - deficiency, and not autoimmune. If it helps - great, but often its pushed as the main solution, when in fact some with hashi's get worse when taking iodine. Such confusions are often innocent but still keep us sick.
Lifestyle changes are almost always required and with this disease we often get tired, thus the last thing we want to hear is "exercise!" I am not exception "but" we have to find an exercise we can handle. Hatha is something I've always been drawn too, but on my egroup I tell folks to do whatever they want, just do something. [Tho I still have this egroup I have not had time to get involved lately for personal reasons 'but' there is so much unique help there and I am leaving it open in hopes that one day I will have time to go back to it.]
I am the first to admit, this disease makes it even harder to want to do work toward change because what doctors often don't reveal or test for, is it is also inter-related with the adrenals. We, hypothyroid patients, are running low on adrenaline. And if something upsets us, it can leave us feeling sick or 'out of it' for days. This needs to be honored, at the same time we need to find a solution.
In some ways hypothyroidism may appear to get in the way of regular yoga philosophies, yet it is not that far off. We can still find solutions for us individually, to do the work, one that doesn't leave us drained but even empowers us.
Then there is also the issue many docs don't bring up, that any illness or problem the hypothyroid person has will effect the function of the thyroid, such as allergies for example. If that is not gotten under control, the white cells etc, will in turn effect the thyroid. Thus when going in for blood work it won't be as good as it would if instead we were able to get allergies under control. Not always an easy task, but never give up...on anything. This is also where I think PranaYama helps, and reiki, combined. That which we can not understand, often they can.
I know too much about Hashi's so I better sign off. Good luck all.