I don't understand this. He won't eat. He's healthy, or seems it, his number 2's are normal. He gets exercised 2 times a day (3-4 times now I've started summer holidays). I take him to a field and kick a ball for him to get for 30-40 mins. So he must get tired and need energy, i.e. food but he won't hardly touch it.

He will eat over food like chicken and other meat but not dry food and he needs the dry food or he gets the runs. Any advice on what to do please?