Just another few data point for you all, my 8yr old experienced a sudden flare in her TS tics within about 8 hours of the pfizer covid vaccine #1 in November 2021 which lasted a few weeks.
For me, when I got my Covid booster in November 2021, an old lumbar spine L4 nerve compression issue that I had (and had not acted up in the previous 8 months) flared within about the same timeframe (8hours) of receiving the booster.
Not saying not to get the vaccines, but there is definitely an inflammation thing going on.