Is It Normal To Experience Pain, Dizziness, And Difficulty Walking After Attempting Anal Sex?

Hi, today my boyfriend attempted to try anal and as soon as he put it in I felt so much pain. After quickly having him pull out I began getting dizzy and almost about to faint. Why might that be? In addition it’s hurt to walk. My butthole burns and bending over or standing up even using the bathroom is extremely painful. Is that normal or did I tear something?