Left hook to body in Muay Thai class. Wrist pain, why?

Hello everyone. We were training combos in Muay Thai class when we were told to throw a left hook body shot in a light sparring manner. I threw the shot and just did my arm and already felt wrist pain. When I threw it with my body and went harder the pain was still there but minimal.

Now I have thrown left hooks before but I am not understanding why so much wrist pain still? I did have to deal with De Quervain’s up until June of this year but this felt different. I’m not understanding the pain I got just by throwing a light arm compared to arm and body motion.