Despite what your friend has told you,fortunately it is extremely rare for children to develop brain damage these days. There are several possible causes such as meningitis in infants [now rare] for example. I do not want to frighten parents reading questions on this forum by giving any other possible causes.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.