Cleo is almost 7 years old, and has been really healthy over the years, except for the epic yarn adventure. So this evening, she and Marcus were playing with Bob, and Cleo was chasing Marcus, catching him and biting him, just to hear him yell. She stopped and sat down nearby, and suddenly she cocked her head like she was listening to something and froze in place. I noticed something was wrong, and Bob went over. When he picked her up, she just kind of collapsed, but her head was still cocked sideways and her front foot was outstretched stiffly. He put her down and she couldn't walk. By now, I was yelling to get her to the car, Bob was trying to put his shoes on, and Cleo was still pretty unresponsive. Anyway, we got into the car, and by then, Cleo was coming out of it, and by the time we got to the vet, she was about normal. The vet examined her, took her blood pressure (they use a tiny cuff on the tail, and took it 6 times, much to Cleo's disgust) and finally took a blood sample. He thinks she had a seizure, and that she is basically healthy. We will get the blood tests back on Friday, and then decide what else will be done. In the meantime, we watch her. She came home wanting to eat everything. Marcus is treating her like an alien. What a night!