Ha ha Mr. Polar bear, I have a feeling you're on to something
I had both my hips resurfaced..they're called Birmingham hips..twelve years ago. At the time it was a puzzle because they didn't really put it down to arthritis. Looking back maybe it was something to do with what I now have, crohns, which may have also started around that time without me realising it.
Also, I have osteoporosis, diagnosed about five years ago, so maybe that's a contributing factor too.
And of course, as we age, we all get more creaky and develope all kinds of aches and pains, marvellous isn't it
Bunty x