MMA wrist injury?

[Jake M]

Yesterday afternoon I injured my wrist after a bad block of a kick. I was kicked in the hand, which made my hand move backwards towards my forearm too quickly. My hand was numb at first, and I could not move my fingers. I chose to continue fighting, and eventually won, but I'm afraid I may have made it worse. I have very little grip strength, it is painful when I grab things, to the point where anything heavier than a salt shaker is impossible to lift, and experience pain when I extend my fingers. I cannot rotate my palm left or right when my arm is bent upward at the elbow, and cannot turn my hand upward when I lay my arm on a table. The athletic trainer said it was most likely a hyperextension, but I wanted a second opinion before i went to a doctor.