Whenever I touch where I circled inthe picture he twitches and will swish his tail sometimes. Now I've thought about Ulcers because he's a OTTB and were having to feed him so much right now. But he's not showing signs, he's eating fine, acts normal, drinks normal, and doesn't have lose stool. He was 300lbs underweight when we got him so he's getting a lot of food right now till he gains it back. Could this be a sign of ulcers? Also would it hurt to put him on a daily suppliment for ulcers just to prevent them?
Also I have thought that it might be where they would hit him with the crop when he raced. They lady I got him from said they used to beat him pretty bad so that he would run?
Heres the pic just for reference easier to show you then tell you..