A comprehensive list of all the tests for various neuropathies
can be found at www.lizajane.org.
You can use it as a checklist to see what you have
and have not been tested for.
I too, go to Hopkins- and at one time was referred to the pain clinic, by
a neuro who was taking my doc's patients when he was on surgical leave.
This neuro didn't have a clue (my neuro would've handled it differently)!
The pain clinic is run by the dept of anesthesiology.
They are 99% drug oriented and highly suspicious of everyone
as a habitual drug user and opiate addict.
They were not able to help me, and when my doc got back from sick leave,
we both worked out a better treatment for me.