After a little more digging it appears that the footage was from an audiology PhD (not an MD)
So you posted a video with a different person than you thought...The event happened in 2019
From a different timescale than you thought...and eventually the DTaP or some such injection was implicated.
Taking a different medication than you thought...And took that as evidence that the COVID is vaccine is bad? Lol.
Further, demyelinating diseases and/or transverse myelitis (the two are not synonymous as you imply) cause muscle weakness, poor coordination, muscle spasticity, and paralysis. They do not cause regular and rhythmic contractions as seen in that video.
Pick your side now.
When the sides are:A) The entire global scientific community
Or
B) Someone on a bitcoin forum who clearly does not understand science or medicine at all and just regurgitates things he doesn't understand from Google
Then everyone with half a brain cell is picking A.