Hi osieb
I can't really answer your question but I imagine that there will be the same range of response as there is with women with ovaries ie some women will experience a resumption of symptoms which last for a long time - maybe always, and some will experience a resumption for a short while after which they will decline and disappear, and maybe some women will never get a resumption of symptoms.
May I ask why you have been taken off HRT? Is it just for a trial period to see how you feel and because you have reached the natural average age of menopause? Have you had health problems due to HRT?
Unless there is a good medical reason to come off in your particular case there is no reason why you cannot continue with HRT. If you look at the menu on the left under Hormone Replacement Therapy - you will see that the benefits generally exceed the risks between aged 50 and 60.
http://www.menopausematters.co.uk/balance.phpIf you want to come off HRT then I gather that 6 months is the understood trial period to see what happens to symptoms. If you would rather continue then go back to the doctor and request that you go back on it. 3 months was the longest I came off it ( at age 57) - and that was my choice. For me I couldn;t cope with work and the symptoms so went straight back onto it.
A friend of mine is 63 and still gets tablet HRT from doc because she works full time and also couldn't cope.
The great thing in your case is that you don't need a progestogen because you don't have a uterus - so I imagine HRT is quite straightforward for you?
Hurdity x