I'm hoping that the medical staff there at Mayo, even with all your records and past tests, will take a look at your situation with a fresh eye (obviously, they'll be doing lots of tests of their own).

And though I know it can be hard when one is in pain, try to "present" with as much "doctorese" as you can. One of the benefits of these boards is that one picks up a lot of that lingo.

Keep us up to date as well as you can.