Wrigley (F-16 mos) Was doing well with the itching problem. In the last week she has lost interest in the Zignature Turkey she has been on for 6 weeks and has started licking paws til red. She has been using Pup Lab products for 3 weeks. She usually eats at night but with an effort. Even hiding treats in the food does not work to any degree. Thoughts on all?