Started having headache every day in the back of the head. 4days ago. could it be post concussion syndrom? concussion 8 weeks ago. should i worry?

Post-traumatic HA: Post-traumatic headache is considered a form of secondary headache that occurs after head injury. In addition to headache, other associated symptoms frequently develop after head injury and the post-traumatic headache is often part of a post-traumatic syndrome. However, there may be a delay before the emergence of some post-traumatic symptoms. Rec.: see orofacial pain or headache specialist.