I recently bought a nanny that had one kid. Her kid was 2 days old, now about 13-14 days, when we got her. The kid is primarily only feeding on one udder and the other is swollen to about 1/2 a gallon size if not milked every other day. At least that how much I got 2 days ago. I am worried that there is something wrong. I don’t feel any masses or lumps and the milk comes out pretty easy and looks and tastes normal. Is this a common thing or do I need to do something?