Hey Suzy!
I'm fairly new to all this too, when I started HRT last summer (the first time, I should add!) I was about 4 months or so after my last period so at this stage we are classed as peri I think? I haven't heard of anyone at this stage being on a low dose like this if I'm honest (I started on 1mg). Femiston contains the "friendliest" kind of progesterone for those who react to progesterone (which is fairly common). My meno symptoms were not flushes luckily but almost every post I've read says that the HRT helped them in that area particularly.
on Femiston 1/10 they did definitely help me down there. Why don't you give them a try for a few weeks and see how you go? If I've learned anything its that feeling good is a bit of a moving target when it comes to hormones, so it may take some tweaking, and trial and error.
Let us know how you get on X