whats happened to my toe?!

I do a lot of dance at school, and almost 6 days ago I had to do a hand stand into a crab/bridge as part of a rock and roll dance, but when I landed it, my toe bent under and all my weight pushed against it. There was a kind of popping noise and ever since, it really hurts me to put pressure onto it, I'm struggling to walk, and can't even put trainers on properly. Its really painful, I thought maybe it was a slight nock at first, but surely it should have eased a bit by now? Also the muscle in the top of my leg on the same side is causing me pain however this is not worrying me as its probably just a pulled muscle. Any suggestions as to what I've done to my toe and what I need to do to help it get better.