Hello I am one of the ladies from third tri that has low amniotic fluid, and i did exactly the same as you and googled it "bad charlotte" it scared the jeepers out of me when i read the things you read and set me off into a pointless panic. I have regular scans and my baby is growing fine.
Just because you have low amniotic fluid doesn't always mean you have problems with ruptured membrane etc.
So as hard as it seems then we really have to try and not worry because the stress does baby more harm than good so we have to be strong for our little ones.
Also i have found that drinking 2 litres of water a day has helped my levels a little, because a small percentage may be due to dehydration of the mother.
I inevitabley spend the whole time on the toilet needing to pee, but i'll do anything i can to improve my levels.
I know exactly how you feel, i have done nothing but play the waiting game through out my whole pregnancy and it has been no fun. But good luck with your scans and PM if you ever need to talk.

xxx