Prayers on the way from us.Cats LOVE to munch on plastic bags.(They like the crunch noise).(Like the ones from the Super Market).There could be a peice of plastic bag in there,which will go through the system great with catlax.I hope it isn't an elastic.Those are super dangerous.Especially the real large ones.It's so hard keeping things that are common around the house away from the cats.Good Luck.Prayers on the way for a speedy recovery.I'm sure she'll be fine.