You can still be infected with the Omicron variant of covid-19 even after vaccination

Isn't this true of all covid-19 variants? Maybe you mean you can get infected with omicron more easily compared to other variants?

Pretty scary symptoms indeed! Some sound a bit like a panic attack, for example the dissociation ('soul leaving the body').

Your story also shows that no one is immune to covid, no matter how healthy their lifestyle.