I think I tensed myself out today.
As I've had a faint headache behind my eyes today.
And it occurred towards the end of church and has lasted for basically the whole evening.
So I'm guessing I was stressing during church.
Which I was in a way because I was trying to play Pokemon Go's community event, and I'm worrying about a package that was supposed to have been delivered but i haven't yet gotten word that it's delivered. Plus I'm worrying about what presents to get a few other people. 
Then someone asked me to give a prayer at the munch and mingle but I said no because my voice isn't that loud and that stressed me out.
Plus i probably haven't eaten enough food today or drunk enough water and who knows I may have slept for the wrong amount of time.
So yah.
A faint headache is to be expected.
I've tried tylenol and excedrin, a shower and heatpacks as well as eating and drinking more fluids...but yah. Still have the faint headache.