On August 4th, I fell down on my elbow roller skating. It was swollen, and there is still a huge bruise on the inside of my arm , and it is still tender at the top and towards my tricep. I have more range of motion than I did, but I cannot straighten my elbow and if I try, there is pain. I am not sure if I just severely bruised the bone or if I did more and need to get an x-ray .