20 week scan results... choroid plexus cyst

Hi everyone! Got my results today. Everything was perfect, except they found a right choroid plexus cyst measuring 5mm. My doctor said not too worry at all, because there’s no other markers. But how can I not? I haven’t stopped crying all day. It’s apparently associated with trisomy 18. I’ve had the blood test screening at 10 weeks and the 12 week scan, and all came back low risk. I’m 26 years old.

Has this happened to anyone else?