A video was posted on facebook recently of a pregnant mare that was having what appeared to be a massive seizure in her stall. Her legs were collapsing, she was throwing herself all over the stall when she tried to get up. At a point or two she laid on her side, legs out stiff and eventually she ended with her face in the corner, breathing heavily. I don't want to post the video but I'm sure anyone can find it. The vets said it was a seizure caused by pregnancy hormones. Is anyone familiar with this? Has it happen to your mare? Should the mare be bred again?