For my Physical education final coming up early next week. I have to run/jog a mile. For me, it is extremely hard for me to run because of the intense pain I begin to feel shortly after started to run, but I can walk fast. My teacher for the class told me that I had to run, or I would get a zero for the final. I don't have a doctors note due to some issues with the Rhumies I've seen. I am unsure of what to do, should I just speed walk the mile?