I think the environmental issues are triggering because we can’t do anything about them as individuals (and what some big companies do just doesn’t make sense and often feels like they’re flipping us the bird just because they can).
The toxic work environment will take its toll on most people, even without preexisting anxiety, and it won’t affect everyone in the same way. I’m not going to diagnose you either but I will say it sounds like some kind of anxiety and you’re just getting overwhelmed right now.