Chronic inflammatory demyelinating polyneuropathy (CIDP)

Out of curiosity, does anyone have any info on CIDP as relating to diabetes? I saw neurologist today again and she's really leaning towards CIDP due to my results from the nerve conduction testing and other symptoms, etc. I guess next step is ab testing and spinal tap for conclusive dx, but sadly i'm freshly laid off work and switching to wife's insurance starting next month so i don't think i can keep same set of doctors. Any pointers to good info would be great!