How deep is the container you have her in? Maybe she needs something shallow..so she can come to the surface. Falling to the floor could have hurt her some, and make it difficult for her to come up for a quick breathe. Do you have any Stress Coat...or anything similar..as I'm sure after flopping on the floor she scrubbed most of her slime coating off. Might help her, might not make a difference..but well, you know...couldn't hurt.
I hope she makes it.
Come on boink..you can do it!