@Valentijn, thank you so much for your information. I have attempted to research it further but, of course, as you might imagine, details on this are very scarce. I will persist and report here if I find anything significant.
Ok, so my VDR Bsm and VDR Taq are unlinked. Is my logic correct in that it appears that since 7 out of 8 were in the patient group, that may imply that I may have a problem with potential osteomalacia (rickets in adults) ?
If so, it may be that I have inadvertently (or subconsciously?) averted a problem with this. In July 2012, at age 61, I decided to have my first ever test for Vitamin D, 25-Hydroxy. (It was 26 ng/mL in a reference range of 30.0-100.0). I started taking 5000 IU daily and re-tested in Jan 2015. It was 94. I have since backed off to 5 or 6 days a week.
I have never had a broken bone but the following paragraph from the Mayo Clinic site does kinda fit.
"In the early stages, you may have no osteomalacia symptoms, although signs of osteomalacia may be apparent on X-ray pictures or other diagnostic tests. As osteomalacia worsens, you may experience bone pain and muscle weakness. The dull, aching pain associated with osteomalacia most commonly affects the lower back, pelvis, hips, legs and ribs. The pain may be worse at night, or when you're putting weight on affected bones. Decreased muscle tone and leg weakness may cause a waddling gait and make it difficult for you to get around."
My wife's rheumatologist has a new bone density scanning machine in-office that he is mightly proud of. We might be able to get him to scan me.
Of course, another possibility is that there was a data error in 23andme's analysis. Does anyone know how reliable these things are ?
Thanks again.