Well, the first vet said that Pandi had a chest infection, and gave us medicine to give her, but after she had that medicine they wouldn't check her again so we went to another vet (who's really nice to bunnies) and the new vet said the old vet's medicine caused internal bleeding.
Umm, then this new vet said Pandi had a bladder infection and gave us more medicine for that, but I'm not sure if the chest infection (my mum doesn't think there ever was one) has gone yet, because she still sneezes and wheezes a lot. :c