I posted for the first time last week asking for advice before visiting doctor.
In short I had a partial thyroidectomy about 6 years ago and feel I've had under active symptoms since.
I have been referred to endo for a follow up.
I have also been sent for free T4 free t3 and Tsh.
Can I ask when is the best time of day to go, should I fast?
Also for any females am I right it can change through your cycle?
Should I go at a certain point?