Hi Goingnuts42
from me too.
Firstly what have your periods been doing over the last 2 years you have been peri-menopausal and been getting symptoms? If your periods are still regular then that is quite a high dose to start with as you will still have plenty of your own oestrogen. If you have started skipping periods and your cycle has lengthened most cycles, then you have properly started peri-menopause and HRT should definitely help.
Initial side effects from sudden increase in oestrogen (such as the nausea) do usually settle though but even so 2 mg is quite a lot to get used to straight away and many women find it better to start on a lower dose and then build up. There is a 1 mg dose available.
I presume you are on Elleste Duet that has 2 different types of tablets?
At your age if you are well into peri-menopause then it is important to take oestrogen because it is beneficial to help protect heart and bones at least until the natural average age of menopause around 51. It is usually to take a particular type for 3 months to give your body time to adjust but if this type doesn't suit you there are plenty more to choose from. I would go for a lower dose though.
Hope you feel better soon
Hurdity x