How did you all figure out what kind of PN you actually have? Was it hard to find out?

Also, do you think l would have a better diagnosis of my PN if l visited a special PN clinic in the US?
So far here l am having blood test, urine test and not sure at this stage if l should have a cat scan of my chest and other parts of the body, not sure hwy yet. Did any of you need x-ray or cat scan?
The neurologist said they are very bad for our health and should be avoided.

Sue