there are two types of headache, primary (migraines, cluster headaches
or tension headaches) or secondary headaches, meaning having underlying organic cause. If you had never had a headache or this type of headache before the accident, there are some chances that the accident might have contributed to the onset of these headaches. However, distinguishing between these might sometimes require a CT scan
. A clinical evaluation for a better appraisal and management plan could be better offered by your neurologist
. Arranging for such a consultation would be ideal.
Hope this helps and best regards,