Hi, I posted on your other thread. Yes, I do think you need a referral.
It's just belatedly occurred to me that, as you are fostering (judging by your post and user name) you may not have been given full information about your baby's medical needs. Nutrimagen usually means that some sort of problem (allergy or intolerance) with cows milk has already been diagnosed, so if you haven't already cut out all traces of cows milk from your baby's diet you should do this straight away! This means checking all packets, including margarine, biscuits, cakes, jars of baby food etc - everything. It's not easy, but you will need to be vigilant until you have more information and have spoken to a medical professional.
You urgently need all the facts about your baby's medical history, and this is a safeguarding issue so don't let up until you get some answers.
Dealing with reflux / intolerance / allergy / these symptoms for whatever reason can be hard, and I'm guessing that you haven't been through the whole journey that most of us mums go through, so haven't picked up all the various bits of information we absorb along the way. If we can help, please ask - but you really need medical advice as well!
If your baby has come to you because of problems with the care he/she was receiving at home, then you and social services probably have some work to do to get to the bottom of this. The baby's needs are important, but families in crisis are not best placed to do the research and put special diets in place.
Again, I say good luck! If we on this board can help, them we will.