I adopted a baby .. my neighbor told me that there is a drug in order to breastfeed and have milk in a Manner as natural. Is it true? and if that is true you know the name of the drug?

Hello, I want to ask you … My son soon to be two months, I breastfeed and take the weight normally starts has always wanting something to eat …. That is to say, that after each feeding, he wants a bottle of water in the mouth …. He then heads barely sleep … I was told that because he is not satisfied …. : (. Is it already happened to one of you? Is this normal or actually, my milk is not enough?? Thank you all for your answers!

if head pain, it should not be hungry … Perhaps he needs the suction to get to sleep? Has a pacifier?