Something is wrong with my elbow?

A couple days ago I was playing around with some friends and as I was running I made a sharp turn, lost my balance, and fell. In the process of falling I managed to fall on my elbow and land on my back.

At the time, Nothing really hurt until I was sitting down, I accidentally bumped my elbow into the back of my chair and it felt as it something, a bone? maybe?, moved. It only hurts if i bump it into something. And I don't think theres anything seriously wrong, but I don't know what to do about it.

I tried researching it on google, but most of the symptoms for the elbow injuries are severe pain, or swelling. none of those symptoms apply to me.

Anybody know what could possibly be wrong with my elbow?

Thanks!

-Andy