No one mentioned it to me either, until my oncologist retired and I started seeing my husbands wonderful oncologist. He said geez I sure would hate to see you get a compression fracture and after I had an accident and everything broke two years before. It seemed like my pcp would have picked up on it. Thanks be to Mayo trained doctors!
You will need to advocate for yourself in this. If your doctor won’t listen, I would humbly suggest a second opinion might be in order. Maybe this drug isn’t right for you, but pretending there is no problem certainly can’t be the best plan for you either.