A good Dr will order blood work, urine vitamin D, magnesium, thyroid and others. So just look at DEXA and tell you you should be on drugs. I suggest if she can get HRT, do it. Also find a good personal trainer ( hopefully trained in liftmor) and start resistance, balance, posture, and impact training. A great Facebook group is Brick house bones. Dr. Lisa more is trained in osteoporosis exercises. She also has many exercises on her YouTube channel.