I feel that I am missing out on valuable therapy as well and just sitting stagnant and ignored by the system after a terrible accident. Not to mention my stress level has gone to a crazy level since workers comp cut off my TTD checks with no warning. I am so sorry to hear it took so long for the therapy authorization...were they at least paying you in the meantime?
I hope things move along better for you and at least you are getting the therapy you need now. Just please be careful with those drugs, they would rather make this about your mental state than your physical injury. Their lawyers are quick to call people crazy and try to not blame any of your issues on the concussion.