Hi summerbat
If you are able to tolerate Qlaira then that's great as you are still young, you will be getting bio-identical oestrogen, even though the progestogen is not, and suppressing the cycle which eliminates the massive hormonal fluctuations of peri-menopause.
What you describe - the gradual build-up of aadverse symptoms when taking progesterone, is typical, as well as the withdrawal until it has left the body. If you were very much early peri-menopausal (depending how frequent your periods were before starting HRT) then I can see that this classic HRT regime may not suit you.
How long have you been taking Qlaira? I understand from others that it can take a few months to settle so if you;ve only been taking it for a couple of months or so, I would give a 2 or 3 months more and see how you feel.
As for the utrogestan - 25 days out of 28 is most definitely NOT a continuous regime. The 3 days break is desgined to allow a bleed if one is needed and while this was originally devised for later in menopause, it may well work well for those earlier in peri too, though if you have a strong fairly regular cycle - then perhaps not. There is no reason not to, and in fact the dosage instructions give thius as an alternative to 200 mg daily for 12 days per 28:
"
The recommended dose is 200 mg daily at bedtime, for twelve days in the last half of each therapeutic cycle (beginning on Day 15 of the cycle and ending on Day 26). Withdrawal bleeding may occur in the following week.
Alternatively 100 mg can be given at bedtime from Day 1 to Day 25 of each therapeutic cycle, withdrawal bleeding being less with this treatment schedule"
https://www.medicines.org.uk/emc/product/352/smpc#grefSo it is really up to you - and if this suits you well, then that's excellent.
As always any abnormal, unexpected bleeding should be referred to the doctor, but in peri-menopause then the cycle can override the HRT so bleeding can occur at the "wrong" time.
Hope this helps
Hurdity x