Pain in wrists and back of hands, bulging veins. Serious?

Hi, I am a 20 year old female rugby player. I recently took a knee to the back of the head by my right ear. It was also cold and rainy that day. After I started warming up in the car on the way back my wrists and back of my hands started hurting. I got back and whenever I put my hands at my sides a sharp pain would go into my hands starting at my wrists. Now the pain has subsided somewhat, there is still some pain on the ulnar side of my right wrist and the veins bulge in some spots but not the entire vein when i put my hands at my sides. I would like to know if it s serious and If i should go get it looked at