Cory, please dont take it the wrong way, im not criticizing or saying you were doing smth wrong, im just trying to collect history data to get sense of what's going on. It doesn't adds up for me. If you were keeping her in spot on everything, temps, humidity, supplementing proper foods and changing substrate in correct intervals smth else is going on. If it is renal failure due to her previous keeping conditions it would have happen long ago, not 4 months later, and on both sides evenly, however as Carlos pointed out location of edema would suggest renal problems, so we can't rule it out yet. That type of renal failure can also happen due to infection, not nessesarly low temps.
So im thinking.... Infection? Parasites? Digestion problems? Reaction to smth in the environment?
and looking at these last pics... What is it she is sitting on?
Have you done fecal testing?
how long it's going on, how she is eating/pooping during that period? How did she do that before? You mentioned she goes in water baths only, q - what are you feeding, how supplementing
Ill look up your other thread tomorrow, gotta go sleep now, but be back tomorrow.
and if you are going to call the vet, can you ask if she can ask a lab to make a hypertonic amphibian solution for you, and how much will it cost, I'll get a recipe for you if needed.