Carlo, our three year old beagle is not acting right for the last few hours. He's not quite as active as normal but his appetite is. He keeps licking the base of his tail/anal region. He also doesn't seem able to find a comfortable position to rest. He started falling asleep sitting up. We thought he might have gas or constipation so we gave him some canned pumpkin which he readily ate. Any ideas or should we be off to the emergency vet?