I sent off a fecal sample to my local vet (some of her BMs were coming out a bit runny around this time), and "Eleanor" was diagnosed with having a nematode. Vet sold me some Panacur. Tricked my frog into taking it by sprinkling it on some Samurai Pacman food. Was told to dose once that day, then again 14 days later. Did.
I was able to get a fresh sample (a well shaped one this time, too) a few days after the last dose. Still awaiting a call from the vet (maybe I'll call them tomorrow).
The whole time I was keeping Ellie in her regular enclosure with substrate and everything. I know many keepers place their frogs in "hospital tanks" and whatnot, but with nematodes (or such internal parasites), is such a measure needed? I didn't want to do it if I could help it because I know she would've hated living on paper towels for 2+ weeks. Didn't want to stress her without reason. But at the same time I wouldn't want her to keep catching the parasite I was trying eliminate because it was still living around her in the cage. . .or something.