As a side note, home cooking is quite expensive. The main canine allergies are chicken and wheat; and there are many kibble choices that have neither of these ingredients.
How old is your dog? Has your dog always been on the same kibble? Did your dog have an MRI to rule out any other brain abnormalities?
"He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion."