Polyhydramnios

I was just diagnosed with polyhydramnios (a condition in which there is an excessive amount of am iotic fluid in the uterus). I'm 37 + 5 and am just wondering if anyone else has been diagnosed with the same thing? My tummy measures 40 weeks already and I'm so uncomfortable. I've been measuring 3-4 weeks larger than I should from about 30weeks. I don't have GD and baby is measuring on the smaller side actually (she's 6lb 8oz) so there don't seem to be any complications other than the high amniotic fluid. Any mommies with experience with this?