I saw a thread on here that someone said that some seizures have a cardiac component. What excactly is that? Because one of my seizures I have when they start, they ALWAYS feel like they are coming from the heart. Back when I was in highschool I never knew what they were and I went to many heart specialists for it...well it turns out they were seizures. But I just always wondered if anyone else has had seizures where it feels like they start from your heart?