For a lot of people, it shows up on an ordinary weekday, some months after the last day. Not grief. Not anything you could point at and name. The house is quiet, the coffee is fine, and nothing in the day is pulling hard enough to get you out of the chair.
Look for an explanation, and you land on the phrase retirement depression, attached to either a symptom checklist or a list of hobbies.
We would start somewhere else: how much of this retirement did you actually choose?
