Last Friday.
I woke up with a headache, and usually when that happens it results in a all day long type of headache. Where it will go away for a few then back again, then go away and back. Its really difficult for me on those days because it reminds me of when I used to get a migraine where I would have to shut myself off to the world in a dark, quiet room. Even the Sun and the Snow together hurts my eyes. So usually what I do is, remain calm and try to have a little quiet time. It usually helps.