as always there is no substitute for a good, thorough in person professional eval. however, let's have some fun.

where exactly does it hurt? same side as the palm? back of the hand? side near the thumb or little finger? is it deep or superficial? any tingling? popping or clicking? does it feel stiff? if it cracks does it help the pain, make it worse, or not change it?

try this and report what happens: if you put both arms in the same position and move each wrist can you see that one doesn't move as far as the other? if so, which direction is it? check all six planes of movement: put your elbows at your sides and your hand out like you are going to shake someone hand and move your palms together and away, little finger toward the floor and thumb up, palms turned down toward the floor and then up to the ceiling the whole time keeping your forearm parallel toward the floor. Look very closely to see if one moves more or less than the other and if it hurts. if one position or more causes pain carefully try to pull on the hand as if to pull it off your wrist - be very careful to not alter the position of the wrist. You may need someone to help you with the pulling part.

what are the results?