Don't feel guilty...all you were trying to do was something good for his nutrition. But yup, head to the vet - and put him immediately back on his old food to see if it resolves.
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~
°¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |