if i had to guess
I went to St. Lucia (honeymoon) remember getting “food poisioning” symptoms from beef while on trip in 2003.
On the flight back to the states, tongue, lips, fingertips went numb…
lips and tongue improved, but slowly fingers/toes got a little worse each year, and I’d have “flare ups” of numbness if sick with something else.
Slowly got worse from then on.
Took a few years/tests to pinpoint CIDP, mostly by ruling out GBS/MS/ALS, etc….