Flare-ups?

Flare-ups? Does anyone else go through periods of time where their stutter seems worse than “normal” (I guess, for lack of a better word)? I’ve noticed that mine is flaring up from my baseline (blocking more, longer elongations) which has happened before, but I’m just curious as to y’all’s experience. Does yours flare up? If so, is there something you can pinpoint as the cause of it?