This is the first report of psychotic symptoms after receiving a COVID-19 vaccine. SAR-CoV- 2 is known to trigger a powerful immune response, which includes the release of large amounts of proinflammatory cytokines. As of January 2021, 42 cases of psychosis associated with COVID-19 infection have been reported. It has been hypothesized that a COVID-19 triggered cytokine storm may increase the risk of psychosis. Coincidentally, schizophrenia has been linked to a pro-inflammatory status.
https://fml.lol/can-new-onset-psychosis-occur-after-mrna-based-covid-19-vaccine-administration/