Hey, sorry no one got to this earlier.

Unless she's been injured or fallen off something, MBD seems a likely candidate. I think there may be a product that might be helpful - reptile rescue? Some name like that. But in general, getting calcium in her would be a very good idea though at this stage if it is MBD it's pretty far progressed and hard to reverse. Muscle weakness and dislocation is a bad sign.

Also, toads need water, you're right! I wouldn't give them deep water but they need a water dish at least. Do you dechlorinate it?