Today i had a headache and nausea for no reason is this weird? i hit my head on my bedpost but i seem fine

Before or after?: If the headache is after you hit the bedpost then post-traumatic headache should be considered. This is a form of secondary headache that occurs after head injury. The post-traumatic headache patient frequently have accompanying symptoms of post-traumatic syndrome and should be referred for appropriate management to a headache or orofacial painspecialist.