Bottom line: I have learned to NOT use my quads, hips and glutes while running. The result is a biomechanical mess that has me doing more to stop myself than propel myself. This PT I also saw said I look like someone who has torn both ACLs and never had them repaired. (That definitely didn't happen to me, but he was making a point.)
I need to stretch and do some rudimentary things to get my body working normally again. At this point I am hopeful but realistic that I've tried so many things and nothing has worked. More to come.