"LAKE" in the placenta 😒

Timeka 🌹👪
So I'm 18 weeks tomorrow and at my ultrasound I got done at 17 weeks I was told by my doctor that I have a "Lake" as they call it (extra fluid in the placenta with bub). He said it's not to be to concerned about just have to keep an eye on it and hopefully as bub grows it will go away. As a first time mummy I am beyond nervous that it's something really bad and he didn't want to say that because he knows I'm such a worry wort and would stress about it heaps. I even googled it which people say not to do but when I did it said it was nothing to be to concerned about and just to enjoy my pregnancy, so pretty much I was just seeing if anyone else has had this and what was your experience? Or an info would be greatly appreciated. Thanks in advance 😊