Two years ago, I injured my right elbow swinging a hammer, and they told me it was tennis elbow. You could feel a knot in my upper forearm. I was in a bowling league at the time, and just flat had to give that up.

My doctor said to try physical therapy first, and set me up with a therapist. I was skeptical, but just a couple of weeks of physical therapy helped a lot, and after 6 weeks, my arm was just about as good as new. Hopefully, yours will work out this way, too. Good luck.