Welcome to HCM,
Your TSH is high which is due to under functioning of Thyroid
so giving Thyroxine
in the form of Thyronorm
will reverse its metabolic effect and if repeat test also shows high TSH may be dose is required more so it can be increased as per result of tests.
It may take 3 months to have all effects as you have anaemia
also which may be due to hypothyroid or Iron deficiency
which must be investigated properly and treated.
If hair loss is due to hormone disturbance and there is no other cause it will also expected to improve.
Please take care of your diet and medication you will become Euthyroid soon.
What is the reason of pigmentation of tongue it depend on its cause it will improve or not.
Please follow up regularly with your Physician.