Hi , yes I am a female and only know that GBS which is what a was diagnosed with is considered a classic acute autoimmune neuropathy while CIDP is a classic chronic autoimmune neuropathy.
the only reason my neurologist found and treated me with IVIG infusions with Plasma was from the spinal tap needed as part of the many test to determine my MS
and yes it certainly does hurt however unfortunately it is a necessary evil for Ms because it cannot be properly diagnosed without mri, spinal tap, blood work and more.
The GBS was found in spinal tap test . Doctor wasn’t looking specially for it.
I wish you well and am sorry I have no real advice or helpful info for you