I had a craniotomy 4 years ago for a left opthalmic brain aneurysm. The surgeon told me then that my headaches were not a result of the aneurysm, although after the surgery the headaches were much less frequent. The headaches came back full force and I was sent for a CT Angio and again I have a small aneurysm at the base of my skull, not operable at this point. Again the surgeon is telling me my headaches are not a result. But he did say if I get a severe unusual headache, get to the ER asap. Now I am confused. Are headaches a result of aneurysms or not? I asked if he could advise me about what to do about these headaches and he said, I need to see a headache specialist. What is a headachs specialist. Would he not be an expert considering he is a neurosurgeon that does brain surgery?