Good Luck Jane ! I hope you get your diagnosis confirmed and you can go cock a snook at the local fellow. You should prepare just as you did before: health history, symptoms and all, but of course explain the circumstances for this visit, how you were diagnosed at TLLC by whoever it was, and the problems you have had continuing treatment locally.
By the way please remember that only favourable comments can be published on the forum. Use PM for anything else, ( hopefully not necessary ! )