I have seizures, and they haven't been able to distinguish between whether I am having actual epileptic ones, or is it a symptom of ptsd. They have not done enough to make that decision. I have had only two tests done, A CT scan, and an EEG (I think - well it's the one where they stick heaps on electrodes on your head and do tests like flashing lights etc). They found nothing unusual there, however, I am still on medication to prevent them. The medication seems to work because I have them less frequently now.
I do know when I am going to have a seizure and mine are quite scary for people. I scream a lot during my time unconscious, and I also convulse violently, foam at the mouth. It is a full on looking seizure. From my point of view it is extremely scary. Nothing scares me more than what I experience during these. The dark gets me and it is so opaque that it feels as though its crushing me. Every particle of blackness. At that time I'm trying to remember what I am, who I am, and what I'm fighting against. I lose all memory. Am I a bug, an animal? Who am I? When the screaming stops I am still in this state of crushing darkness. During that time I forget to breathe. Because I don't know what I am or if I have to breathe to be alive.
When I come to, I often have an oxygen mask held to my face. Then I can't sleep for days because I am afraid of that feeling. That darkness is like the heaviest thing somehow getting into your body particles and weighing you down. Not remembering who and what you are.... freaky. So is forgetting to breathe.
Sometimes I think this is a PTSD thing, sometimes I just don't know.