We're doing it under advisement of the vet, he said based on her tests and response to insulin he doesn't think she is really diabetic-but that she may very well be. Basically if he had treated her initially she would have changed diets without insulin and waited to see what that did before starting insulin. He is concerned that she crashed on me on an initial starting dose, and that day by day her response to insulin keeps growing to where she is responding to microdosing like a cat normally responds to full units. Also concerned with the steep plummet at onset. So, he proposes trying no insulin for a couple days just to see where she's at before returning to insulin if needed.