I have injured my ribs in a gocart accident

I slid sideways into a wall at about 25mph. The cart has a wrap-around seat that only covered the small of my back, around to my short ribs. After about 20 hours, there is still no discoloration, but it's quite painful.

you might have cracked a rib or something. if the pain persists for another day then you should probably go to a doctor.