Re: Dark green stools
In an otherwise healthy, happy baby, green poops can be considered a variation on normal. Not a health problem, just a little weird. (If you want to see something really weird, wait until your baby starts solids. )
Lipase (not lactase) is an enzyme that breaks down the fats in milk, creating a taste which is variously described as soapy, metallic, or rancid. It is not a problem with fresh milk, but with milk that has been stored. If lipase is a problem for you, you either need to concentrate on giving your baby only freshly pumped milk, or you need to scald the milk (i.e. heat it until nearly but not quite boiling). Scalding destroys the enzyme and prevents the development of the yucky flavor. You may want to start pulling and taste-testing bags of your stored milk, if you have been freezing, since lipase can affect even frozen milk.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"