Traumatic brain injuries dont always show
https://emilianovfrj469.scriblorax.com/posts/summer-heat-tire-blowouts-and-highway-wrecks-in-south-texas
Traumatic brain injuries don't always show up right away. My uncle had headaches for weeks after a crash before anyone connected the dots. If you hit your head at all, get checked. It's not worth waiting to see if the headaches go away