The tough thing with Cushings is I think they are predisposed to pancreatitis, so I wonder if the fat content in the new food was a little higher than she could take? Could have been the veggies, of course, too. Too much irritating fiber?
I think the the condition may vary from day to day, to make it even tougher.
Yeah the day to day is the pardon me DARN truth... I switch her to a no veggie and she went right back to normal... her case pancreas is fine but the liver hates over 15% fat ( I aim for 10