Hi, I fractured my left tibia when I was 13, 20 years ago. I’ve recently taken up running, but I have this (probably irrational) fear that I am going to ‘rebreak’ the bone just from putting weight on it by running. is there any possible way this could happen? it was a pretty clean break, no pins or plates, just your normal 12 weeks in a plaster cast. I’ve never felt 100% confident it’s totally healed, tho. Please let me know if it is safe to run.