Hello and good evening, i have a question in regards to an odd bump that i noticed while at work today (its not the first time ive had it it comes and goes) its about two fingers width down from my wrist and roughly the size of a quarter on the ulna side of my right arm. its tender to the touch and my hand all the way back to my elbow feels stiff and sore. i currently work at a factory doing a rather monotonous job with my hands and was wondering if you knew what this could be and if it could be work related?