Thanks for the link. That's a good one so I sent it to my daughters. The regular MD did some diabetes tests yesterday too.
Doc said for most people this injury is just spontaneous. They said it's real common in women in their 70s and 80s and I told him well I just look young for my age.
I have no doubt I started the tearing by playing soccer. I coached rec leagues and high school varsity for about 15 years. Too many headers. It was worth it. I coached my daughters teams, got to know their friends and their parents, and kept in shape. All my injuries, down to the fussiest thorn in my thumb, were earned doing something i enjoyed. Someone on here has a tag line about sliding into home with a battered body, saying whee what a ride and I agree. My body, like my house, is "lived in".
