My daughter been always in the petite size and now she's a 8 months and only 17lb and the doctor thought she lost weight when she has sick and I said no she was eating perfectly fine... so he told me to get more meat on her bones... any healthy way to do this? she only eat fruits and her baby food is Organic.. we do not give her junk food or fatting food.. I don't understand why I have to make my daughter bigger when she eats perfect is it because babies more bigger now so their change weight the babies need to be "healthy"