So this could be completely unrelated, BUT: I started taking Creatine again about 2 weeks ago, and right about the same time I started taking it, i started getting a strong headache about once a day right around where my sinuses are. I went to the doc and they perscribed me some antibiotics to take, but they arent helping. neither is any of the regular over the counter sinus stuff. Could it be the Creatine? I am getting plenty of water (drinking about a gallon a day), but I can't help but think it might be the creatine. I am taking 5g a day with the ON 2500 capsules. Any input?