Aww sorry to hear this! Try not to worry or think to much about it as it won't help and whatever you do stay away from Google its the worstttt and always worst case sanorio! Your baby will be fine are they gonna keep an eye on it? My eldest didn't have this but when he was born we was sent the hospital over the size of his head but turns out he just has a big head like his dad. Try not worry I will say my 🙏 for you that it goes by the time you have another scan if they are going give you more. X

I asked if it was normal for baby to have fluid in the brain but all they told me was it was ok. I'm really sorry to hear about your little one, have they told you anything about the amount of fluid build up? Hopefully it goes away for both our little ones