I have cerebral palsy with weakness on the right and have plenty of injuries on that side including broken bones. The pain is bad but definitely manageable. I must have banged my left leg, nothing serious some time yesterday and oh god the pain... felt like my right pain broken hip.
When I broke my right hip the doctor couldn’t believe it was broken or I’d be crying with pain - now I understand what she meant if a slight bang hurts this bad.
My less serious answer is paper cuts - how can such a tiny cut hurt like that?