Ouch. I had bursitis in my elbow a couple years ago. It legit looked like I had a tennis ball in there. I went to the to doctor because I had no idea what it was at the time. He thought I would have to get it drained which I really didn't want to do because that greatly increases your chances of it coming back. I managed to avoid it by taking it super easy. I carried a pillow with me everywhere to rest my arm on. I would suggest as little use as possible until the discomfort goes away. Good luck!
