Metal Mouth Message Board

For about a week or so, my expander has been making a clicking noise whenever I turn it. Tonight, it made a clicking noise and then a sort of crunching noise. I noticed the metal parts behind it kind of jiggle as I turned it. Could my expander be broken? I still feel pressure when I turn it, but I don't think all these noises are normal.

sounds broken to me ,better get it checked.