As another old guy, you might ask your doc about the advisability of getting a
QCT Bone Density Scan to assess the "T-Score" of your major bones, and how close you may be to osteopenia.
Most of us tend to lose bone mineral density as we age, making bones more vulnerable to osteoporotic fractures, and more difficult to repair once broken. My knowledge about my own thin bones has caused me to discontinue certain sports that have high risk of impact. Good luck.