hi, i am a mother of 4 year old boy and 3 month old girl. i am brestfeeding my girl, but i couldnot breastfeed my son because i had difficulty with teaching him. but sometimes i feel bad about that and when ever my son becomes sick i think i should have try harder for breastfeeding him. now that i have my milk back, can i give my expressed breastmilk to my 4 year old? would this be healthy or harmful for him? if so how much is good enough to build his immune system stronger? i cannot ask this question to anyone because i think people would laugh at me. it would be very helpful if i get the answer. thanks in advance.