my son has forgetten what he has learned before. even he dont rember what he had in lunch or breakfast . he will give me standard ans like what we generally have. sometimw he will do remember few things like he didnt had egg for a long time. means what we have not done for long time. but end of the day he wont rember what he had done. he cant tell me about his whole day. his age is 4 year 6 months.