Once you see the neorologist you will feel better ,Headaches of course can be caused by a number of things like Diet, too much sugar or sweetners, also a lot of pain Meds, as they can cause a kind of
withdrawal when you stop them if you are taking anything check out that isnt causing the
headache, and as for the other tests the answer ,is only wait to see ,there are a lot of things out there now to help with anything they find.