[pfg]

> It would typically happen maybe once a month at most, but it was almost always on a Sunday.

Do you recall if you slept in on those days? I tend to get a specific kind of headache if I sleep for too long.

This also happens if I take a nap during the day. I don't really take any naps because of that, but I remember hating being forced to nap in Kindergarten (at least during the first two years or so), probably for the same reason.

[julosflb]

Idem for me. Too much sleep or late wake up during the week end tends to cause me migraine.