Wrangler had a bad bout of wing flips last night--pretty much all night and still has them this morning. He doesnt get any type of pellet or fortified food, just natural fruits and veggies. He did get some granola mixed in with his chop yesterday just because I was at the bottom of the bag and didnt want to throw it out. He's also been getting a lot more fruit the last two weeks. Any ideas what may be causing it?