I think all the wc systems are broken...
At least for the invisible type injuries - ie: hard to prove injury & that job caused it.

SandyRI- Do you have TOS also? Or has it been ruled in/out?
I know many w/TOS that would get horrible headaches after arm use.

It would be another complication in your wc case - but if it might be it's best to find out for sure and have it added to claim if it is TOS.

We have a thoracic outlet syndrome forum if you want to read more about it.