So it was Ice's first day of having all senior and rice bran only. He was obviously okay during the day, there were like 4 piles of pretty solid poop in his stall, but tonight when I turned him out he acted weird. Usually I turn him out, he might go and roll, and then he'll go to his spot at the fence and start cribbing. Well tonight he rolled, was doing a lot of grunting, but got up fine. And then he just stood there for like 10 minutes. I went to go bring another horse out, and when I came back he was laying flat out. I watched him for three minutes and he stayed like that, so I decided to see if he would get up when I approached him. He did sit up, but I walked right up to him and he was still laying there. While I was standing there he decided to pass gas, which made me feel a little better.
Normally I would be happy that he trusts me enough to let him walk up to him when he's laying down, but I had just switched feeds. I had to go and corral a pony out of his turn out, and he did get up and follow me to the gate. He didn't object to me pressing on his belly, and I did hear ONE little gurgle, so I let him go back to whatever he was doing and went to go grab another horse. He did start cribbing right as I was getting in my car, so that made me feel better that he was at least doing something normal.
I went to check his stall and it looked like he didn't eat any of his rice bran, so he only had senior, and there was only like a handful of his hay left.
-sigh- Thank you for reading my worry rant. Cookies for all.