Maybe you have a pinched nerve,but ,clinically,it looklike soft tissue injury in lower back area (L4/L5),which means inflammation tissue lead to right leg pain and right foot pain ,and this tissue also can stimulate nerves,then affect sensations of calf and back stiff ,etc
So physical examination of lower back is more important than MRI,It's hard to know inversion therapy works for you or not.
Good luck!
You have a pinched nerve!!!!!! I suffered for 15+ years with the same symptoms (40 years old) - I too was an athlete growing up and spent my 20's and thirties just coping. Finally I realized that it was affecting my career and family. MRI's showed inflammation and disc alignment issues. I was open for anything until I found inversion therapy. I use inversion therapy to realign my spine and yoga for strength. Sounds way too simply, I felt the same way, trust me IT WORKS. I may need surgery in the future, but for now I am healing and loving life again! No doubt it's a pinched nerve, continue to seek help, try inversion and you'll recover! Good luck!!!