Hello my little girl Gracie has Addison's disease for which she takes prednisone every day and an injection every 28 days (I forget the name of that medicine). She has a hernia that needs to be operated on and now I was told that she has crystals in her urine and the vet needs to get a fresh sample from her. My baby just turned 5 in July and I can't believe all that she's going through. I was reading online to see if there was a correlation between Addison and crystals in the urine but I haven't seen anything. Does anyone have any insight on this subject?