Ahh. ok. So, I'll tell you what my experience with these guys has been. We get them into the store pretty often and in groups of six or so each time. Usually, we will lose at least two out of the six within 2 or 3 days. If the rest eat and start showing themselves during the day, then they will usually do fine until they go home. At that point QT is needed to treat for flukes and ick. If i were you, I'd do my level best to make it stress free for her. She might not make it, and I"m sorry for that, but you can do a few things for her.
1. make sure she has sand to hide in
2. Be absolutely sure there is no ammonia present in the water
3. Get her eating and soon
4. Check for redness around the gills. If present, try a methyline blue dip to help heal any damage done during shipping or acclimation.
5. Lots of O2 in the water
Unless she shows more symptoms to help us pinpoint a less ambiguous diagnosis, this is what I'm going with. It's 50/50.
I should add that I brought home two blue star leopards to QT. One for a friend and one for me. The friend's did this exact same thing, mine didn't. The friend's didn't make it despite my efforts to save her. I thought is was a swim bladder issue too, but I could never confirm. Unless she shows a swollen abdomen it will be hard to tell for sure.