What's wrong with my ankle?

I can't seem to figure out what's wrong with my ankle. Here's a little of my background: I'm 24 - play ice hockey 2 or 3 times a week - and run 2 to 3 times a week.

As I was suiting up for a game a couple weeks ago, I noticed a lot of discomfort in my right ankle. I attempted to play (stupid, I know), but could not skate without experiencing a lot of pain. After taking my skates off, I noticed a little swelling and a hard bump on the front of my right ankle (that bump may have been there before, but I could have missed it).

I was told it may be tendonitis. I have been icing my ankle daily and kept myself from skating and running. As of right now, my ankle feels fine and I have full range of motion. However, when I put a skate or sneaker on, it still hurts... very annoying.

To the best of you knowledge, what's wrong with my ankle?

I appreciate any info. you have to offer!