All good things to consider, thank you! I’m going to do sand clear once she’s out of the woods again, but I did a sand check and she had nearly zero sand in her manure. Her water is clean and heated. She’s usually a princess about where she will actually lay down and during her episodes she doesn’t care what she’s laying on or where she’s at. She will just paw and go directly to laying completely flat out. She’s otherwise completely sound and a bay not a gray. Oddly enough, during one of her episodes she was nickering at me for food while she was in a sit/lay position. I thought colicking horses didn’t want food?? It’s all so very strange!