Phia, welcome to MM!
I would very definitely recommend you start using HRT as soon as possible to eliminate your symptoms and also as a preventative measure. There are two parts to the menopause, short term symptoms of the type you describe and long term health problems caused by years of oestrogen deprivation and I take HRT mainly for the latter.
HRT is now viewed positively and all the guidelines have changed. The general consensus now is that you should start taking oestrogen as soon as you own levels start to drop and there is no longer any time limit on it. I would suggest you try the Femoston and see how you get on with it. If it works and you get a significant improvement, stick with it but if not, I would suggest you change to the the Oestrogel/Utrogestan regime - this is the one I use and highly recommend.
HRT has moved on tremendously and there is no comparison between the old school, heavy duty varieties that were used in the 1990s and the bio identical forms that are used now.
Please don't suffer any longer, you don't need to and there is no reason not to take HRT.