i went to the baby clinic for the first time today, and the hv said dd is not gaining enough.dd weighed 2.8kg when born and weighed today 3.9kg she asked how often i was feeding, i explained on demand sometimes every hour during the day. the hv advised me to not feed every hour but every 3-4 hours in order that she wuld get a better feed and gain weight?.....im very confused........any advice?.....