Hi, Welcome to Hcm, Your concern is understandable. Few more details like his age, how was he developmentally before the incident, how significant fall was it meaning from how high and what was the immediate situation after fall- did he loose his consciousness and have vomiting etc would actually help in arriving at a better conclusion. Having said that, we cannot neglect the possibility of internal brain injury with these symptoms which can present like abnormal symptoms in children. If I were your pediatrician , I would suggest you to get a Ct scan brain to be sure if there is any internal brain injury. Hope this helps your query. Take care.