You have to fill in a form which you get from the doctors receptionist usually, and you fill it in, the doctor signs it and it gets sent away to the err. ....... Local health authoriy? Then you get a card back.
If the doctor considers that you need levothyroxine or other thyroid replacement meds than he can sign the form to get you the exemption card.
If you've a normal TSH and antibodies I'm not sure. I have antibodies and a 'normal' TSH but I'm deemed even by a private endo not to have a thyroid condition. It's utter bull.
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