First of all, you have not cheated by giving formula. It got you through a tough spot and that's ok.

Having said that, the formula will be affecting your supply as the less you breastfeed the less milk you make. Your baby is still tiny and I would not be expecting her to sleep through the night yet. She has a teeny tiny tummy that needs replenishing every 2 - 4 hours and sadly the reality of this is often very little sleep for the first 6 week. Also at night is when your body resticks the milk for the next day, so she will need more at night for a while. This is normal and the more you feed her at night the more milk you will make.

The tiredness is so tough though. Are you feeding her at night lying down in bed so you can get some rest too? I know for me this was a lifesaving move as I could snooze, if not have a deep sleep, whilst my baby was feeding.

With the wet nappies, consider using cloth nappipes for a short while as it is much easier to tell if they are wet or not.

Hopefully the Motillium will kick in soon and in conjunction with your DD feeding on demand you will soon find her gaining weight at a steady rate.

Good luck

T
xx