My poor boy. He's not even 3.5 yet. He appeared to have a grand mal seizure. My husband was in the room when it started. He started running in circles. Then he was lying on his side, vomiting and seizing while I held his head from hitting the wall. It was the longest 30 seconds of my life. We could see his confusion and fear as he began to come out of it. We go to the vet tomorrow. I don't know what happens next. His last dose of flea and heartworm meds was the 15th. He's been on Zyrtec for allergies for 2 months now. He's not getting anything but his food tonight. I can't believe this is happening to my boy.