I know it is scary, but you are pretty early into what must have been a pretty bad injury.
Like a broken bone , a head injury can take time, sometimes longer than we want it to.

Read the sticky threads on the TBI/PCS forum main page above the list of threads.
here is the TBI/PCS main page , you will see the sticky threads with little green circles with arrows -
http://neurotalk.psychcentral.com/forum92.html