I have been having this pain in my left elbow for the last 6-7 months. Normally it's imperciptible but whenever I feel it whenever I flex my arm; particularly in the morning after I wake up and off-late on some days it feels slightly more and on some days it's hardly there. What I also noticed recently is that when I fold my arm and pull back the loose skin as tightly as possible; I saw a small barely noticeable bump / lump - pressed it hard but was not sure if that was the source of the pain but it's definitely in the area of the pain. I am also not sure if it was always there or if it has grwon recently.