I Fell Off A Step Ladder When I Rolled My

I fell off a step ladder when I rolled my ankle on my way down. I landed on my left side mostly the hip and rolled to my backside. No pain at first but now my hip is sore with a pain that radiates to the top of my knee when I bend my leg up to tie my shoes or sit cross legged. Nerve damage vs ligament? Or possible exercises to help with the pain and stiffness? Thanks!