My left elbow has been giving me problems for a while now.. It locks up and takes a lot to get it to straighten out if I keep it bent for a few minutes at a time.. Lately a new symptom has appeared a sharp pain when bending my elbow.. All of the pain seems to be on the outside of the elbow

Do you spend a lot of time using a computer, and is this the arm that you use to move the mouse or touchpad?