Cyst found on neck at anatomy scan?... 😔

Maggie • Pregnant with baby #4 💕

Went in for my anatomy scan on Friday and a cyst was found on my daughters neck. There we’re no other markers or issues and they said they are almost positive it’s fluid filled. I have an ultrasound at the hospital on Wednesday, but I started googling and researching for answers and now I am sick to my stomach and so anxious. Has anyone gone through this?