Poo after feed

My second one went through similar episodes around that age too, and it was quite draining honestly. Since she started infant formula, it could be her digestive system adjusting to it, or sometimes a mild tummy upset that passes on its own within that week. That said, might be good to bring her to the PD just to rule out anything like lactose sensitivity or a mild infection, especially since it's happening in cycles. In the meantime, keep an eye on her nappy count and whether she seems uncomfortable or feverish, as those signs would tell you if it needs attention sooner.

my daughter too, she's in IFC as well, she's had diarrhea for the past week too. I change her formula to the lactose-free formula from NAN but it is a lot more expensive but works for her slightly because the teachers always ask me to fetch her back when I'm at work :')

Switch her milk to insomil (finish the small can) so her tummy will be better and stop the diarrhoea. Then you can switch back to her regular milk after insomil finishes, it will go back to normal.

you can try another brand of formula milk that are gentle to stomach or goat formula milk or switch to isomil to see if she is lactose intolerant, isomil is lactose free