Quad Stretches i think because, they support his feet if they give out he's gonna fall and he needs to wake them up and make them work out.
Answer: Just explain to your doctor that the cast is causing a terrible pain and that you need to have it taken off or you could ask him if you could get the cast replaced with a new one
Explanation:
I would be answering what happened and why
Try to breath. vent with your parents, friends or guardian. never let your stress change your attitude.