Had a traumatic brain injury 4yrs ago.been trying to cure my constant headache.i think i may have occipital neuralgia.how would i diagnose this?thanks

PCP...Neurologist: 17 y/o female says, Had a traumatic brain injury 4 yrs ago. Been trying to cure my constant headache. I think I may have occipital neuralgia. How would I diagnose this? Thanks. Injury seemed to have happened when you were technically pediatric/ Adolescence age group. Should first see the PCP or Pediatric Neurologist for evaluation before anything else. The sooner the better. Wish you well soon.