Drinking a lot often points to a crop or digestive issue.
I'd check the beak and get a good look at the poop.
Often crop/digestive issues are a symptom of an underlying condition like reproductive disorders, infections, worms and/or coccidiosis.
Sounds like you may have pressed the crop and she aspirated fluid.
I'd check to make sure her crop is emptying overnight. If it's not, then address that symptom.
https://www.backyardchickens.com/articles/how-to-treat-sour-crop-and-impacted-crop-and-how-to-know-which-one-youre-dealing-with.73607/