Yes. For me it correlates to elevated stress either in the moment or the few days (or weeks) before. If I've also not slept well or enough, I notice it faster.

Yes. For me it correlates to elevated stress either in the moment or the few days (or weeks) before. If I've also not slept well or enough, I notice it faster. I no longer consider it a thing to be fixed, but a fact of life. Delivering at 100% of "potential" every day is not really normal, and some of my most productive moments are in days I've consciously accepted I won't accomplish "normal" amounts, and end up solving some unsolved problem because my brain had the space to process it. It works out in the end. :-)