CIDP to MFS (plantar fascittus)

I am recently in recovery for MFS. I was diagnosed with plantar fasciitus 4 years earlier, altho it presented ‘atypically’. The PF has been slowly moving up my legs and occasionally I get ridiculous thigh cramps and other unusual phenomena. I discovered during googling, that a few others with CIDP were initially mis-diagnosed with Plantar Fasciitus. With the current Miller Fischer experience, I am now wondering if the PF is related. A more specific question I have is, ‘is it possible to have CIDP undiagnosed (mis diagnosed as PF) that eventually brought on, or triggered the Miller Fisher Syndrome’? Does anyone have any thoughts or guidance on these questions?