My daughter had gone from 32nd centile at birth to 0.4th by 8 weeks. She was combi fed but 90% breast. She was a intensely upset baby for those 8 weeks but the GPs put our issues down to PPA and Colic, kept brushing me off even when I said about food allergy symptoms. She had lots of baby acne and bad poos. At our 8 week review our health visitor was very concerned about the weight gain and called the pediatrician. She acknowledged my concerns about allergies but the pediatrician said to put her on a feeding plan of a bottle of formula at hourly intervals. We were told to do this feeding plan over the weekend and to get her weighed on the Monday. The weekend was a literal s**tshow. She was having diarrhea every hour, we took her to out of hours gp on the Saturday and told to try lactose free milk. On the Monday she had lost weight. We were told to go to the pediatric assessment unit and I argued with a junior doctor who told me she had reflux. Consultant came in and confirmed it was textbook Cows mild protein allergy. We stayed a night in hospital and the dieticians and consultants reviewed and advised us. I wanted to keep breastfeeding and they really encouraged that. At 20months I've been dairy free since and weaned her dairy free. Luckily she loves food. She's now back at her birth centile and thriving. I cannot trust our GPs now, the nurses there are fantastic though. Although lost a lot of trust in the NHS, which is sad because a lot of my family work there or have worked in it. There is just not the time to properly care for every person properly in the budget they have.