“exercise intolerance, excessive fatigue, brain fog, insomnia, and dizziness”
Seems like a lot of overlap with with “Long COVID” etc https://www.cdc.gov/covid/long-term-effects/long-covid-signs...
Would be interesting if the vaccine was simply excessively powerful in doing its job rather than a more direct issue. Like thanks for saving millions of lives, but did you have to be so loud?