Hi carosid
from me too!
I presume your doc has given you Premique no bleed HRT because you are already on the POP and not getting bleeds and the POP by itself does not usually contain sufficient progestogen to protect the womb lining from overgrowth due to oestrogen stimulation. However many women would find that too much progestogen and the side effects would far outweigh the benefits of the added oestrogen. Also Premique is the old-fashioned HRT (made from horse urine!) so you might want to take one with estradiol instead, if you are thinking of changing.
You are right though that continuous combined HRT is not normally given to women who are peri-menopausal but in your case I think this prescription has taken into account your circumstances: as the pill has stopped your periods then it is difficult to say where you are in menopause but your symptoms combined with your age should be a guide. As far as I understand it you will not get a true reading of FSH levels while taking progestogens anyway.
Personally I would not want to take such a high dose of progestogens - although many women taking the CCP do take high doses. Have you thought of having a Mirena coil which would act as a contraceptive and also give uterine protection? Then you could add oestrogen as tablet, patch or pill. Alternatively if you get on well with progestogens anway, as you are only 48 you could try the gentler CCP QLAIRA which contains oestrogen in the same form as HRT ( ie estradiol) but controls the cycle and provides contraception too. It only has two tablet free days, although the oestrogen dose varies throughout the cycle but you would only be taking progestogens on 22 days out of 28. There is information here:
https://www.menopausematters.co.uk/contra2.php (scroll down)
Hope this helps
Hurdity x