Yeah I was worried that might be the case, since she was a PetCo baby and the only one who wasn't floating in their cup when I found her. She was just a little bit plump yesterday so I fed her half the amount she usually gets this morning, but when I went to feed her just now she looked like she was gonna pop. x.x She's swimming a little better now, I just noticed it while she was trying to stay still and eat. She only rolls/twists when she stops swimming...
Behold, photos from my phone...