Grade: 2
something like a sprain on the 5th left foot tarsal
peroneal fascitis
The cause seemed to be the shorter length of my left leg (fractured 10+ years ago) and a metal implant with 7 screws on the tibia. When running, I over-extend the left leg to compensate for its shorter length.
My solution was to remove the insole of the right shoe. I had the insoles on when I ran 40+ km a week ago.
Removed again the right insole, Stretch, massage
getting back slowly to running was the cure