Seems like something else is going on, if you've been on that amount before with no problems. Are you sleeping in a funny position that might cause neck pain and thus the headache? Or are you perhaps having some sinus issues? I know that when I'm stuffy I often wake up with headaches...I guess it's because the gunk kind of pools in my sinuses or something. If it doesn't get better soon, schedule and appointment with your general doctor.
Status: Remission since May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Diagnosed with pancolitis on 1/30/09
Currently taking Apriso (4 0.375g pills ONCE!! daily), mesalamine enema twice weekly, Natural Factors Ultimate probiotic 12/12 Formula, and Zoloft (25 mg).