thanks for that Karena.
Lindy, she seems fine otherwise - lots of wet nappies, she's pretty settled (for a 4 wk old!) - even did a 6hr stretch last night. Her pooping has become more frequent with the green poo. Prior to that she'd save it all up and do two or three massive ones every other day, but pretty much every nappy has had poop since the green stuff started. We have had a few attachement issues in the last week, which I think I've rectified now. maybe that has caused the change? anyway, seems like it's not anything to worry about at this stage. I'll try to make sure she feeds longer and see if that helps.
ETA: oh, I woke up with a head cold yesterday morning
possibly she's got it too? although she seems ok - sneezing a bit, but she was sneezing before too. hmmm..