I recently carried a piano and had a lot of stress on my elbow and tricep (the way I had to hold it), and a day later a large bump appeared on the inside, and just slightly above, my elbow. It is rather hard, and when I touch it, it reminds me of the pain from when I fractured bones in the past--or, at least, a very severe bruise . It has been about a week, now, and no improvements. Is it time to get it checked out?