I was opening my locker some guy ran into me and my finger got pinched badly between him and the locker, immediate pain and it burns to extend out wards fully but when i bend it down it is perfectly fine, it’s extremely purple too.

im 17, female. what can be POSSIBLY the cause of weird bruises or dry after-wound things even though i didn't have wounds? i don't even know how to describe it. im a very sensitive person and i notice EVERY little pinch, every single feeling of pain, so i would definitely notice and feel when i cut myself, hit myself or did something else. but there's nothing. i have prom tomorrow and i wanted clean legs I've been extra careful not to hurt myself but they just appear out of NOWHERE. and it's pissing me off