Your case is detailed and of course, the nuances vary from state to state.

The most critical thing you can do is immediately seek the specific guidance of a workmans comp attorney in your area. There is simply no way a message board/forum such as this could ever begin to address the specifics of your complaint.

A local attorney can, in mere minutes, advise you of your rights under the law, and sumrise if he (or she) believes there has been a violation---or at the least, any violation that is actionable.

I would act in all haste---the more time that transpires, the more difficult it will be to defend your position.