So I'm A Dancer, And During Class This One Time

So I'm a dancer, and during class this one time we were lifting up one another, doing different activities. So when I was getting lifted I fell backwards and landed on my back kinda. Right after that my back started hurting, and shortly after that about 20 min later, I was starting to have a hard time breathing, getting sharp pains every deep breathe. Also with almost every breathe my back and ribs crack. 6 hours later with the pain now going up to my neck