Hi again jbean
I am most definitely not an expert on thyroid - there are others on here who are though.
However all I know is the doc will do a standard TSH test as part of a general blood test. Now as I understand it, if you are above the "normal range" you will then get referred and at this point the doc may well request more detailed tests ie T4 and T3. I am not sure whether you can request these if you feel you have symptoms but are within the normal range? I presume that privately you can ask for anything, whatever your symptoms - ie if you want to know your T4 and T3 when this is not advised on NHS?
When you get the results of your blood tests - perhaps you can report on your estradiol and FSH as well as TSH? As you are well post-menopausal your oestrogen levels will be very low - which is, of course, normal. However if you have symptoms that are troubling you - either due to thyroid or low oestrogen or both, then treatment is appropriate eg HRT for low oestrogen symptoms - flushes, sweats, anxiety, low mood, headaches, palpitations, vaginal atrophy and a whole host of others. You won't need to wait for the blood tests to start HRT if you have symptoms though - only if your thyroid is also not working properly will the doc want to look at this before treating with thyroxine or referring you to an endocrinologist.
Hurdity x