Reflux advise

Kimberley

So my little girl is 3 week 5 days and give been told she has reflux, shes on comfort milk recommended by doctor and giving gavsicon via syringe but doesnt seem to be helping... shes unsettled most of the time she doesnt sleep or settle on a night unless shes in my arms and has started been sick again... I dont know what to do I'm running on zero sleep and have a 2 (still wakes on a night), 5 and 7 year old... so tired and drained and also have pnd I dont know how to help her doctors just say try gavsicon... my son was the same minus the sickness and he was diagnosed with cmpa but took 3 month to get a diagnosis I cant cope 3 month