Stanley had to suffer through his first episode of colic last week. Colic is a very bad stomach ache for a horse. In this case his was a gas colic - similar to gas cramps in a human. The vet had to give him a tranquilizer for the work she had to do on him. He was very sleepy.
But by the next day he was feeling good and back to hoovering up the grass as fast as we would let him eat it.