Help! My pony Bart(19yo) is acting weird. This morning when I went up to feed him he wasnt interested in his food, he would take a small bite, chew a little, then spit it out! Whats wrong?? I listened to his stomach for like 30 seconds and didnt hear anything and then I made him walk and he walked just fine(he is prone to lameness) he wasnt trying to lay down just looked like he was trying to chew with his tounge sticking out. Whats wrong? What should I do? Is it his teeth? Do I need my vet?