About four days ago i had a small minor isolated headache that began, i thought nothing of it even though i normally dont get headaches. I don't have a history of Sinus
problems, or anything like that.I do however need a root canal. Well, anyways, it has been four days now, and the headache has continued to grow, it has spread from the left side of my head and into the right. the weird thing is that it hurts more in the new location than it did where it started.