Poop question!

N

My little girl is a week old. My milk came in two days ago and at first her poo changed to a bright yellow as expected. However since last night it’s gone back to a dark green/brown which is much thicker (nearer the colour of the meconium she started with). She’s also been very restless and uncomfortable today which I think is tummy related although she is feeding ok (if anything more than normal).

Is this expected? Could it be a sign of something? I am seeing my midwife tomorrow but keen for anyone’s input.

TIA