Belay that order. Just do 5-10g a day. Period. While the loading phase might get you up to snuff faster, you also can run into side effects of too much creatine. I've never heard of creatine headaches but back off a bit. Just do 5-10g a day.. and see if they subside.
You've also done a lot of very good, detailed, long posting.
Maybe staring at the monitor for long periods of time has done it as well.
I suggest getting a 21" LCD monitor. To ease the stress on the eyes.