I have to agree with Peter here. Stop trying using the internet as a tool to figure out the problem. I'll tell you, I learned NOT to do that much anymore.. as it made my headaches even worse. One big thing that can cause daily headaches is poor posture along with sitting in front of a computer screen all day. If your having a headache for 3 months.. you need to have that checked out by a Nuero doc. I just realized that this is an older post, so I hope by now you are headache free.