Welcome to HCM. I have gone through your question and understand your concerns.
1. Regarding liquid iodine - This is useful only in iodine deficiency
hypothyroidism, which is rare nowadays.
2. Thyroid hormone replacement
is the treatment for hypothyroidism. This has to be taken in supervision by a medical doctor
and the dose needs to be periodically adjusted doing thyroid function tests
3. Your other complaints like hair loss will improve with thyroid hormone replacement.
Hope I have answered your query. If you have any further questions I will be happy to help
With warm regards,
Dr Ajish TP (MD,DM)