Thank you for posting your query.
Your symptoms of headaches
and memory problems could be related to concussion
that you suffered in the car crash, and it would recover on own over time. So, there is no need to worry.
However, if your symptoms persist, or if they get worse, then, you should get your CT scan
of the brain done.
I hope my answer helps. Please get back if you require any additional information.
Wishing you good health,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad, India
Click on this link to ask me a DIRECT QUERY: http://bit.ly/Dr-Sudhir-kumar
My BLOG: http://bestneurodoctor.blogspot.in