I slammed my closet door against my head and I now have a headache?!
Question: I slammed my closet door against my head and I now have a headache?
Go tell you mum. If you have banged it hard can lead to concussion I would tell your mum asap spes if your feeling tired after the bang please go tell your mum so she can at least keep an eye on you
Unless you have an underlying condition(or incredibly strong), it's very unlikely that you are able to propel a door fast enough to give yourself a concussion. A headache is to be expected with a head injury. If you are getting blurred vision or feeling tired, you should talk to a doctor.
US Army Combat Medic