Worried for this Guppy

[Scaperoot]

     Our female guppies have been beating fry for a few weeks. We have dozens at the moment. For the last few days, I’ve noticed that one female in particular seems to be having a hard time giving birth. She spends quite a bit of time upside down, sometimes twirling. Are her fry stuck? I’ve never witnessed this before. I thought she was dead at first. Anything I can do? 

[Fish Folk]

I've rarely seen Guppies recover from that. If she dies, be sure to get her out before ammonia builds up too much. It's typically something gone wrong with a swim bladder. I've also observed something like a "twirling disease" -- which may also have a relation to the swim bladder. I personally do not know of a cure.

[lefty o]

probably not going to make it.