I've had a chronic daily headache for 12 years following a concussion in an mva.will it ever go away? what is the best treatment to fix this problem?

Meds?: Most people with chronic daily headache (cdh) are on daily medications as well. The first step is to get off them. You weren't on them, find a headache specialist to begin therapy.

See neurologist: It is unusual for concussion symptoms to last this long. A rare person will have prolonged symptoms related to this type closed head trauma. All that do deserve a complete neurological evaluation. See a specialist-neurologist.