I should have added that thyroid problems usually result from Hashimoto's Thyroiditis or Grave's Disease. The tests to detect these are TPO, Tg ab, and TSI. My discussion above was all with the thought that you might have the most common thyroid problem, which is that of being hypothyroid. If that is not the case, and you are hyperthyroid, then that requires a whole different approach. So please give us more information and we can try to give better answers.
We'd like to be as helpful as possible, but you gave us very little specific information. Lacking that I will try to provide something useful for you.
ACNSC stated correctly that if you have no thyroid gland function, you will have to take thyroid meds for life to replace the loss of natural thyroid production. There are no supplements that will take the place of thyroid meds. There are three basic types of thyroid meds. These are T4, T3, and a combo T4/T3 type. Doctors frequently like to prescribe T4 types. These are adequate if the dosage is high enough and also if your body adequately converts the T4 to T3. T3 is the biologically active form of thyroid hormone. If your body does not convert T4 to T3 adequately to get free T3 high enough to relieve symptoms, then meds containing T3 are necessary.
In my opinion the best way to treat a thyroid patient is to test and adjust levels of the biologically active thyroid hormones, free T3 and free T4, with whatever type of medication is necessary to relieve symptoms, without being constrained by resultant TSH levels. Symptom relief should be all important, not just getting test results within the ranges. The ranges are far too broad to have success by just getting test results anywhere within the ranges. Many of our members here report that symptom relief for them required that free T3 was adjusted into the upper part of its range and free T4 adjusted to at least the midpoint of its range.
If you haven't been tested for free T3 and free T4 (not total T3 and total T4), then you should try to get that done. If you get that testing done and will post results and reference ranges that go with the results, then members can help interpret and advise further. You also need to find out if your doctor is going to be willing to treat you clinically by testing and adjusting FT3 and FT4 as necessary to relieve hypo symptoms. If not, then you will need to find a good thyroid doctor that will do so.
I hope this helps answer some of your questions. Please let us know if you need any clarification of the above, or if it creates more questions, let us know and we'll try to help any way we can.
All this depends on if you have hyer-thyroidism, hypothyroidism or it can go further into hypothalamus or pituitary dysfunction.
I take Nature Throid, for hypothyroidism. I'm not sure if you are in the U.S but it is a more natural and less expensive alternative to the usual medicines prescribed like snythroid or levothyroxine. I highly recommend Nature Throid for Hypothyroidism.
You should see an endocrinologist.
I don't really understand your question, but if you have no thyroid you have to take thyroid meds for life. I would google hypothyroid and hyperthyroid to get a more information.