Aussie Cat,
I went to a neurologist (and other specialists and G.P.s) in Australia and it wasn't until I asked my G.P. about nerve conduction studies and being referred to a second neurologist who dealt with this type of problem that I was given a referral to a neurophysiologist i.e. a neurologist with special expertise in peripheral neuropathy, amongst other things. No doctor of any kind had mentioned these tests to me; it was from reading here that I became aware. The tests were then conducted which proved my diagnosis and with that now on my medical records I am accorded much better treatment (no longer told, or inferred, that I am crazy).
For me it has been of great import to have that on record for my treatment now and in the future. I hope your problems don't progress to the point where you can't function at all without meds but, if it does, you need a correct diagnosis to get the correct meds and, hopefully, before you become desperate.
Good luck!