I am kind of in the same position as you.My cancer was hormone receptive,but I chose a mastectomy and chemo,but didn't need radiation.I was given a choice,and when I said mastectomy,my surgeon said,"I think that's a good choice".After chemo,my oncologist put me on Tamoxifen,as she believes that 2 years on Tamoxifen then switch to an Aromatase is kinder on the bones,and the difference in preventing a recurrence is so,so tiny.However,after I started on Tamoxifen,she sent me for a bone density test,just to get an idea of how things were,and thank goodness she did.I have advanced osteoporosis,so I went to see a specialist at RPA in Sydney.He prescribed Denosumab(prolia)injections ,every 6 months.To say I was very scared is an understatement.I read all the side effects,and pretty much convinced myself that I would get all of them!!!!However,I went to my dentist and had a check,before I started.He explained to me that necrosis of the jaw is VERY rare,and my dentist is a specialist in this area.I have now had my first injection.My doctor also told me that side effects are not common,and if I had some they would most likely settle down.I am pleased to report that I have had NOT ONE side effect.I had my injection about 3 months ago now.Because of the osteoporosis I will always be on Tamoxifen now.I feel happy with this,and so long as I make sure I have my 6 monthly checkups,and keep an eye out for any unusual things that may crop up ,I feel that this is a good ,safe path of treatment.Another lady on the blog has denosumab also.She had hot flushes to start with,but she said they have settled down now.All the best with your decision.Stay in touch.Cheers Robyn