https://www.backyardchickens.com/th...ent-gleet-and-sour-crop.1453170/post-24207239
Not sure if you saw this but I think it has great information to help you.
First thing first, stop trying to induce vomiting. You can kill her this way. She probably vomited earlier because she drank and then you tipped her over.
2nd, how does her crop feel? Is it squishy or hard. With the smell I also suspect sour crop. It you want to rule out impacted crop also...