Hi there - there is a paper which classifies the different stages medically and I will post a link for you. There is no such term as "in menopause". There is peri-menopause and post-menopause but the years around the time of the last period are also called the menopausal transition. This is partly because you do not know when you are post-menopause until 12 months after your last natural period which many women do not experience either due to ovary removal as in your case or because they start HRT, amongst other reasons.
in your position you might get an idea of when your natural menopause would have been from your age and the stage of menopause you were at before your op - but in reality you may never know. I don't because I started HRT at age 53/54 - 5 months after my previous natrual period - but they were very sporadic so I guess I wasn't far off.
This is the paper:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3580996/If you have ovaries removed - as you did - then you are most definitely post-menopause - this is termed surgical menopause if it happened before natural menopause. Some people use the term "in menopause" colloquially - to mean post-menopause.
As a result you will no longer experience any natural (reproductive) hormonal fluctuations of any significance - and any sdie effects or symptoms you are feeling are either a result of HRT, or additional consequences of your op ( eg testosterone depletion), or some other reason.
Hope this helps
Hurdity x
PS I see Dotty replied while I was writing this!