A few days ago i started noticing some numbness on the tip of my thumb. Each day it seems to get a little worse. Now the numbness is in my thumb, pointer finger, palm and up halfway up my arm. It doesnt hurt, just numb and tingly. In the beginning the feeling would come and go, now it seems to be more constant. As far as i know i didnt do anything to injure myself. Is this serious, who should i see?