My first thought was colic by the way she was scratching at her stomach. We later ruled that out because she was eating normally and she didn't try to roll or lie down while I walked her around. I did some googling of her symptoms when I got home and the best I could come up with was ulcers.
I called the vet and told her that's what I thought it was. The vet is also the chiro I had come readjust Abby's hip a few weeks ago. While she was there, she did some acupuncture to get rid of the "wind" in her withers. She said her stomach points were hot and wouldn't be surprised at all if she had ulcers, but since she is the nearest vet and is over an hour away, she can't get up here until Monday afternoon.
She said, if possible, start her on some GastroGard just in case, but it would suck to start her on that because it's super expensive. Well, I looked up the price. She was right: It's very expensive. And the closest thing to a horse supply store we have is Tractor Supply, which does not have GastroGard. If I ordered it online, I doubt I'd have it before the vet came out..
What I'm trying to get at: Is there a cheaper option that would help for the week? I'm not sure what TSC has for digestive supplements.
Also, she's not on any grain, just free choice hay as she is kept in a pasture rather than a stall. She's a bit high strung, which is what I think would have caused it.
Sorry for the novel!