I have a 6 year old miniature gelding. He has been a little "off" for several weeks, yawning a lot, but eating and drinking. Just not quite himself. Friday morning I observed him laying flat on his side, rolling and kicking. He did this all day, just getting up to walk a few steps and lay down again. I took him to the vet, temp was normal, heart rate was slightly elevated even after pain meds were given. She kept him to treat for colic with mineral oil. Saturday he was showing improvement, eating and drinking well, and he passed 2 piles of normal stool as they were examing and treating with another mineral oil dose and pain injection. He stayed overnight again just to make sure he would continue to improve as we live about 100 miles away. Sunday she said he was doing great so I brought him home. He trotted around the pen with the other 2 a little bit, took a couple smalll drinks of water then laid down and rolled and kicked again. And the yawning...head hanging down. Called the vet back, she had me give him some Prilosec, now she thinks maybe an ulcer. But she didn't think anything of the yawning, and yes I told her and he was doing it when she was examining him. Would an ulcer cause the yawning? Anyone have any ideas?