I had a doe with ketosis last year, but I didn't figure the diagnosis until she was quite bad.
It was two weeks after kidding, Martha, a boer doe a little on the heavy side, went off her feed. I thought she was just being picky but pretty soon she stopped making milk(she had trips and TONS of milk) and started to get diarreha. I wracked my brain trying to figure out what to do for her, pretty soon she was down, and refused to get up and only did so to nurse her kids. I called a friend but she didn't know what it was, she recommended to put her on a series of pen shots(wish I didn't do that) I kept giving her B/thiamin shots, gatorade, MOM + olive oil but she wasn't getting any better. She was getting pretty bad so my mom gave her a dose of a remedy, it starts with P, I can't think of hte name of it right now, but it is for extremely septic cases when the animal is in danger of death. She started to get a little better. We looked up in the book and the remedy Lycopodium covers ketosis, but also covered the rest of her symptoms, such as not eating, diarreha, and no milk. Giving Lycopodium to her 3x a day, she was back to normal in a couple days.
Lycopodium should be given in the 30c potency, we give it to any pregnant does that act off or go off their feed, and it usually brings them back to normal.
Remember that ketosis doesn't strike just fat does, it also can happen to skinny does.