I have pain in my upper hamstring when I run. Some back stretches remove the pain for a short time. If I run fast, the pain disappears. I assume this is because the point of pressure on my back is changed. My physiotherapist says my leg seems to be fine.
If I switch shows and run att a medium pace the pain sometimes moves to the outside of my shin.
Where in my back is the nerve that is probably causing this pain sensation? A rsdio x-ray of my back a few years ago did show a number (3) of hernias.