Across mood stories, one sentence keeps returning in different forms: I did not recognize myself. Women describe rage arriving before they understand what it is. They describe crying in the car, snapping at people they love, or losing the buffer they used to have.

Of 312 women at a similar stage, 69% mood plus sleep. Among perimenopause stories that mention mood, sleep also appears in 69% of reports.

The logs do not point to one neat answer. They point to the value of naming the pattern early. Mood symptoms often appear alongside sleep disruption, irregular periods, and anxiety. When women bring all of those together, the conversation becomes less fragmented.

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A useful note is not a diagnosis. It is evidence of a pattern. Three weeks of brief entries can do more than three months of trying to remember everything in the appointment room.