Do I have a brain tumor? scared beyond imagination

I have the exact same thing that you have. I have had a marble size bump on the left back part of my head since I was young and was seen by a doctor and he had a name for it but I can't remember what it was called. I have been having headache episodes since I was 23 and I'm 25 now. I have had a headache now for two weeks straight. The doctors will not take me serious and since I passed the basic neurological exams they give you at the office, they refuse to do anything else. I doubt you have a tumor, but as soon as your parents can get you on insurance, you need to nag and nag at them to take you seriously. Hope you get stuff figured out. Good luck man.