If you get hit on the head, you will have a headache and dizziness afterwards. What's the problem?

When the head is hit, the brain will be affected by at least three reciprocating forces. Because of the structure of the brain, the combined effect of the three back and forth forces will show different consequences according to the magnitude of the forces, which can be explained by the situation in traffic accidents: a car driving at a high speed was hit from behind with a seat belt on, even if it was healthy, its brain had died in such an accident. The specific reasons are beyond the scope of this discussion. I suggest going to the hospital for X-ray CT(X-ray computed tomography), CAT scan (computerized axial tomography), or magnetic resonance imaging (MRI). If more detailed examination is needed, FMRI (functional magnetic resonance imaging) can be performed, and the cost depends on the situation. However, since the brain is hit, hundreds of dollars are necessary. If you feel that your brain or body is obviously uncomfortable, you should step up the ERP test to verify whether brain injury will affect its function. Of course, it is most important to go to the hospital for a specific examination. The most important thing about concussion is retrograde amnesia, that is, you can't recall the situation some time before or at the time of injury. If you can remember clearly, it's not a concussion. No vomiting, no headache means no intracranial hypertension. If the brain stem is injured, it may also lead to death. It depends on the location and intensity of the impact. Cause hemiplegia, become a vegetable, etc.