Big hugs hun in the exact words of my girls Paeds, they are just numbers, the 10% should not be a steadfast rule, as long as the baby looks good, the mum is happy, then they should be left, DD2 lost more than 10% and he wasn't concerned even though the midwives were and were threatening Formula, but I stood my ground and knew my Paed was there to back me if neeeded. DD2 was jaundiced as well, but we just monitored her visually and she improved so didn't intervene further.

Both of my girls were slow gainiers and sporadic at the start, up and down a lot, but given time they both got there

I would stand your ground if you feel comfotable in doing that and I think sometimes it is forgotten that you are both learning (again) and that 72 hours isn't that long to learn

Take care xxoo