Asked For An Mri, Got a Ct

Ok, I asked for an MRI, and was given a CT for insurance reasons. The CT, of course, was negative. I think, what it did rule it, was the possibility of sinus infections and other causes of my chronic headache. We still have no resolution. I am now 3 weeks, 2 days with this headache. Dropping stuff left and right all day. Tripping over things that aren't there. The other symptoms I posted about earlier still come and go. I'm getting frustrated - glad to see that my ct was normal, but tired of hurting with no explanation and no way to treat it. Anyone got any suggestions?

Thanks!