Chris19 - Quality of life is terribly important. If you felt good on HRT and had no health issues that prevented you continuing with HRT, then if you find in the next few weeks the menopause symptoms are preventing you from working and leading a full life, then you should seriously consider going back on HRT. The non HRT alternatives are SRRIs/ADs which also bring side effects and it can be trial and error before you find one that suits you and they are difficult to comes off once started. These SRRIs/ADs don't always reduce meno symptoms either.
HRT is about benefits versus side effects and risks - at yrou age the risks are very small and having 5 years of HRT in our 50s can actually prevent bone loss and heart disease in the long term. I believe many studies have shown that women on long term HRT actually live longer. There are risks with everything.
I know a lady in her late 80s and she was still on HRT at the age of 80 - all I can say is she is amazing, still working, mentally all there and she hasn't shrunk as there is no osteoporosis.
I'm 60, been on and off HRT for 25 years because of premature meno but the side effects of HRT e.g. problematic bleeding and cramps, have stopped me using it now - if I hadn't had these issues I would have gladly continued with HRT. I am just using local oestrogen these days to help with urogenital atrophy. Now off HRT I have had to go part time with work and take life far more easily although I coping OK.
I don't believe HRT actually causes BC but if you happen to get BC then it won't help.
Hope you feel better soon. DG x