Hello~
To be on the side of safety, i would take her
to her pediatrician and let him know what is going on, he/she might want to take some x-rays to make sure all is well.
Another suggestion, take her to a chiropractor that specializes in children, most do anyway. She may have dislocated some vertebrae and that is the cause of the noise, etc. He/she will also take x-rays, study them and then go over the results.