What causes vomiting post a concussion despite a normal CT scan report?
Patient: My daughter has a concussion from a car accident last week. She threw up all weekend and on Monday they did a CT scan. It didn t show a bleed but she is in college and has slept most of the week - and still feels like she cannot answer questions or read or focus. How long should she rest or sleep before she will be ok to return to her heavy Ph.D. schedule? Doctor: Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.  She may be suffering from post concussion syndrome.  Post-concussion syndrome is a complex disorder in which various symptoms, such as headaches and dizziness that last for weeks and sometimes months after the injury that caused the concussion.  Most common symptoms, such as headache, dizziness and sleep problems, which are similar to those often experienced by people diagnosed with depression, anxiety or post-traumatic stress disorder.  There is no specific treatment for post-concussion syndrome. Your doctor will treat the individual symptoms you're experiencing. The types of symptoms and their frequency are different for everyone.  Please consult your neurophysician, he will examine and treat you accordingly.  Take care.