I re-joined to post on this thread because some of what I've been through/discovered for myself may be helpful.
I'm 52, and have been on HRT for about 2.5 years now. I have also had a recent history of recurrent UTIs.
My peri-meno symptoms were less about hot flashes, and more about insomnia, intrusive thoughts, anxiety, memory loss/brain fog, and the things they don't generally tell you about: tinnitus, itching skin, vulval atrophy (which intensified the UTIs), and 'depression'.
I go privately (put it on the credit card) via the Newson Clinic, but they then send the prescription request to my GP, so I get my HRT via the NHS, with the exception of the testosterone, which unfortunately isn't available.
My HRT medication:
Estradot 75 (which has at some points been 50, and others 100; I've had to vary as my hormones vary and to find what works best in a fine balancing act with other hormones/symptoms)
Utrogestan - 1 x capsule daily after I was on oestrogen for about 1 year. Before that it was 14 days on two capsules, and 14 days off
Imvaggis pessaries - about 2 - 3 per week, which I currently need to really stick to, due to forgetting regularly, and I can feel the atrophy setting in again
Ovestin cream - a pea-size amount applied daily to the vulva to help with the atrophy that causes drip incontinence - which has significant enough effects even if mild
Androfeme - female testosterone. I apply 75mcl daily on my upper thigh. Testosterone is so seldom prescribed but really made a HUGE difference to my energy levels and libido
Other medication:
For recurrent, embedded UTIs - Hiprex, 1 g twice a day. A game-changer. It is a disinfectant, and best taken to prevent infections. I'll probably be on this permanently because as soon as I'm off it, then I'm invariably back on to antibiotics for yet another infection. Some people find it hard to stomach, in which case buy "000" capsule cases and pop the tablet in there before taking it. It then dissolves in the intestine, and not the stomach.
For sleep - Triple Magnesium, 260mcg. I take this with the utrogestan about 30 minutes before I go to bed.
For thinning hair - 3W drops from Philip Kingsley for female pattern baldness prevention. This is a new formulation which counteracts the hair-loss that comes from taking testosterone. As I say: balancing act!
For general health - 1,000 IU Vitamin D, taken with some dairy to aid absorption; Vitamin B12; antioxidant supplement
I've also cut out sugar as much as possible. It's demonic. Given it's Christmas, this has not worked out entirely well, and I can feel the UTI symptoms creeping in!
I know that this is not going to work in the same way for everyone, nor is it going to be possible for everyone; but perhaps elements will work/be possible for some of you who read this.
I've done quite a lot of research about this these past few years, and especially the UTI aspect, which no-one warns you about if you've been prone throughout your life (or even if you haven't and they've just suddenly appeared), and knowledge is most definitely power - while I also know that that is only the first step, and the next is to find a sympathetic, experienced practitioner who can help/prescribe/refer as needed.