How long til I should worry about this headache?

[luna moth]

I haven't had any high BP issues at all.
It's not uncharacteristically hot, for Brissy it's quite a lovely cool November day really.
It seems to be settling down with rest and lots of fluid.

[Catastrophic]

Glad its settling down xoxo

[Fleur]

I was told to worry specifically about the ones that wouldn't go away with painkillers.

Glad it's settling for you.