It may be she was just having an off day, not paying attention but it's a good idea to check her if she's not better tomorrow. And if she's in season she might be a little irritable.
Yeah that's what my trainer said. She wasn't worried. She said Sarah Lee wasn't wanting to work and not picking her feet up and dragging them. She said I was almost ready for my spurs and that my horse needed them today. I was afraid this was going to happen though. Last week was almost magical. I'm just greedy, I guess:')