The Wrong Length of Nap

I took the wrong length of nap apparently. XP 

So I ended up staying up late last night.
Waaaayyy too late considering how early I had to get up this morning.
Meaning I only got like 4 hours of sleep...
Which left me rather tired.
So when I was able, I decided to go crash and take a nap after I was done for the day.

But apparently the nap I took....was the wrong length.
Probably too long.
As I woke up with an ache behind my eyes, traveling to the top of the skull and also heading down into the shoulders.
Just one of those groggy headaches. 

....that is refusing to go away.
It has its moments of being less present than others.
But it's still there.
Lurking.
Waiting to flare up if I move my head wrong or too quickly or whatever.

*exhales* 
Hopefully it fully disappears soon.
I don't need another nuclear headache to contend with twice in a week.