I know I’ve told the story a couple of times before...
My good friend had Guillain-Barré syndrome (not from jab)
and nearly died!
If not for going to the right hospital where they immediately diagnosed it as Guillain-Barré syndrome he likely would have died!
Totally paralyzed, on a ventilator, for several days, then therapy, now fully recovered.
VERY scary!
Similar situation with a co-worker. He drove himself to the hospital as feet/legs giving him issues .... a few hours later, he was on a ventilator for a couple of days. Mid-30’s with 3 young kids - very scary for all. It appears if G-B comes on quickly, it tends to ‘leave’ more quickly with less adverse, lingering effects. He made a full recovery, as far as I know.
Earlier this year, a high schooler who was an ourstanding pitcher (getting scholarships, etc) came down with G-B. He was on a ventilator - these were some scary times, but he got off & soon had arm movement with legs following, then went through rehab & is on his way ‘back’. He isn’t pitching yet in games, but is being used as a pinch runner.
G-B occurs after some vaccinations & can also occur after respiratory viruses. Some people are very much disabled by it while others recover partially/fully.