It's your body getting a signal through, having to break through only with a panic level cascade, to get an unconscious understanding that the situation unfolding globally is potentially life threatening in an relatively uncontrollable way - and also perhaps observing the authoritarian control mechanisms being implemented around the world may have also lead to your mind extrapolating to that could become someone else wanting to "cage" you - whether you want to or not, taking away your free will; worth panicking for if you're not yet conscious of that possibility.
I've already found the source (or more correctly the trigger) of my panic attacks and while it was in the same plane you're assuming, the rest of it doesn't really match. I'm a very "free" guy who hates dumb restrictions. These restrictions could be potentially imposed in my neighborhood, unrelated to covid situation. Once I realized that with the help of my therapist, PAs reduced substantially and later went away. I would even agree with the idea of "caging", but I usually cage myself much more successfully than any pandemic measures do. I just thought about my feelings for the last hour and my anxiety is probably/in part about the mass media hysteria rather than restrictions. Compared to e.g. 2018 the entire existence background is filled with that constant creepy infonoise.
Anyway, it was a trigger and not the reason, you may turn out to be pretty close on that.
I think we're probably talking about the same thing, I could've been more careful with my language though. I don't think there's use in my working through to figure out better nuanced language to use, otherwise I'm glad you found resolution to the anxiety triggered.
