@normahorn and @windyshores, Do you have your homocysteine level tested regularly? It can be one indicator of B12 deficiency. A B12 deficiency often, though not always, leads to high homocysteine levels (hyperhomocysteinemia), and one of the complications of hyperhomocysteinemia is osteoporosis. I had mine tested recently, and it was smack dab in the middle of the normal reference range.
https://www.healthline.com/health/homocysteine-levels#complications