What laszla said!
Also depends how old you are too - the younger you are the better it is to be on it, if you are post-menopause and if you are not yet at menopause then you can always start again later.
Yes Nas - agreed that plenty of people live to a ripe old age without problems without HRT but eg if osteoporosis runs in your family or you have low BMI or other risk factors for example, then wise to try to take it.
Brain fog - Mollymoo - whether you get it on HRT - this all depends on what you use. It is most likely to be associated with too much/wrong progestogen, and conti regimes if you are susceptible, or insufficient oestrogen. The right dose can hit the magic spot - it did with me, from late post-menopause.
Hope you manage to make a decision and it helps you....
Do keep posting and let us know how you get on and what you decide.
Hurdity x