I fell on a concrete floor while having a seizure 6 days ago. i hit my head hard. they said they found nothing in the ct. why does my head hurt still?

Multiple reasons: Your head could still hurt from a deep bruise in the scalp and even a bone bruise on the skull itself, a superficial hematoma, or sore spasming muscles in the scalp or even neck. If you continue to have pain that does not improve or notice any new symptoms, check back with your physician and express your concerns. Best of luck.

Concussion: You can have a concussion ( traumatic brain injury) from the trauma. A CT scan is used to make sure you didn't have a skull fracture or bleeding in the brain. It would not demonstrate a concussion. This is a clinical diagnosis. Treatment is brain rest! Followup with doctor if not better soon.

Post-traumatic headaches following a closed head injury are not unusual and most fade over several days following the injury. More persistent headaches should be addressed by a neurological evaluation and decisions to intervene with appropriate medications.