Polyhydramnios, huge baby but no GD?

[Eek3under3]

Has anyone had this? Amniotic fluid was off the scale at 28 weeks (over 20 is considered high/ 95th centile, mine was 33), and baby is measuring huge (1.6kg) but my GTT has just come back as normal.

I am now panicking about other rarer causes such as rare genetic conditions. I did have polyhydramnios in my last pregnancy, but a small/ normal sized baby throughout. I was convinced it was GD this time due to baby being huge…

The measurements aren't always accurate and are less accurate still if there's excess fluid because it distorts the image. If the obstetric team aren't concerned then don't worry

Thanks @AndSoFinally , they said it’s the worst case of excess fluid that they’ve seen (and its a big london teaching hospital!). I’m seeing my consultant on Friday so will know more then…