Beachbound,
I was required by my GP to have bone density testing just based on the size of my wrist & the fact that I'd had IBS-like symptoms for years. And that was before lupus was even suspected, and without my having ever taken steroids
My friends & I are all striding confidently (

) into our 50's. Others among us were also sent for testing earlier, e.g., the smaller-boned ones & the ones who've never taken HRT & the ones who have any known inflammatory conditions.
Your rheumie might well have a clearer answer than the nurse?
Take care, from Vee