[Twice76]

Sorry if this issue already been discussed
but new to the boards/posting. Our yorkie named Macho(is 6 yrsold) suddenly been diagnosed with having pancreatis. The dog food we been giving since he was a puppy is a high protein grain free Nutro Natural Choice dog food. Never had any issues with him until now...besides switching to grain free food because of him constantly licking and biting his arms in which all that stopped when we made the switch 4yrs ago. The vet said to switch to a low fat dog food but can't really find none that are grain because he will start licking his arms tI'll they have bald spots and sometimes bleed. Any recommendations on a good dog food for this issue?? Any info will be appreciated for he is laud out in pain all day and the vet bills are getting expensive. Thanks