I relate to this. How, when and where I am 'in the flow'.
How either stress or boredom can throw me.
In the flow: live TV production, live events, scriptwriting, presenting, directing, most location production work, singing (performing), editing, drawing, creative problem solving, networking and many written exams (+ observational and life-drawing)
Stress includes getting ahead of my experience and skills or finding out too late that expectations have changed whilst boredom results as much from having nothing to do, low levels of responsibility or no challenge. As well as an exam that I have not prepared for or forgetting lines in a play.