It is quite the same for many with TOS also - because so few docs really have a good base of knowledge of it. Only a few make use of special MRI/MRA or Neurography tests. So the majority of TOS patients go the many rounds of MDs, PTs, meds, and go thru the WC ringer too.
Just because there is lack of knowledge and lack of a basic test that can prove it.
They call it malingering also.