I have a 6 week old dd gaining weight very slowly. She was 3678kg at birth, dropped to 3385 at 5 days, took almost 4 weeks to regain birth weight, gained 5 ozs last week but only 3 this week taking her to 3990 today. She is having gaviscon after each feed due to suspected reflux which has helped greatly with sickness over recent weeks and I am feeding pretty much on demand (at least 7 good feeds a day) so why is this happening? I have had recurring thrush on the breast which I am treating and she fusses a little during feeds but fills her nappy twice every day with lots of wet ones throughout. I am so sorry for all of these little details but having googled am starting to panic about possible cystic fibrosis of which slow weight gain is a symptom (although she had the gutrie test but is it possible for false negative?) I would really appreciate any advice or similar experiences. This is occupying my every thought at mo and has took all joy out of breastfeeding .
Thanks for reading.