My 11 year old son fainted and hit his head very hard. I think it may have knocked him out because he had a difficult time waking up from it. He was very lethargic afterwards and vomited. He had a ct scan and mri done and those came back normal. He is complaining now that his throat/roof of his mouth burns. Is this related?
HI...this is not related. This throat and mouth burning sensation could be due to a viral pharyngitis.  But the at the same time I would like to Chat Doctor.  It could be a seizure or complex partial seizure which might have caused this fainting attack in him. I suggest you get an EEG done and ascertain that it is or not a seizure. If it is normal he will require an ECHO of the heart and a 12 lead ECG to see for conduction defects in the heart. Regards -=