Anxiety
I've often joked, in my lighter moments, that just trying to spell that word causes the condition it describes.
Anxiety is a natural reaction to the world around us right now. A sense that we need to be on alert that the threats are unknown but looming, and we can stave them off, perhaps, if we are but watching.
But what Anxiety really does to you is tie up your senses, congest your mind with nothing but itself. it's a prison itself, not freedom from one.