Well... I have updates. The frog seems to be eating more regularly now, assuming I can tell from its size. It's still only half as fat as the other one, which is very round! I gave her a full treatment session of baytril. I'm not sure if that helped, but it didn't seem to hurt. Now we've got further issues! The frog is so listless that it barely moves. If she is prodded, she will hop away, but doesn't seem to mind it she lands up-side down. Seriously, she'll just stay there!
The panacur arrived in the mail today, and I will use that next. Do you think that the worms could do this? I found her laying upside down a few minutes ago, liked she tried to hop and landed badly again. She does the same act when landing on her stomach over a branch or something. She'll just chill. Creepy and sad!