My 5yo son does a similar thing to what you describe, regarding the sitting up in bed, screaming and kicking. He's usually not responsive if you try to distract him. It took me a while to figure out that it was because he had to pee. So now what I do is take him to the bathroom kicking and screaming, (sometimes scratching and biting me) he will relieve himself, and then go back into a deep sleep. He also has a history of night terrors, and we suspect maybe ADD or something. IF i don't take him, he'll wet the bed, which is what made me suspect it was a bathroom issue, and I don't think he's actually awake when he has these episodes. Lately, I too have been wondering if it might be some sort of seizure, but I really think it's more in the realm of night terrors.
As to the pulling at his eyes thing, I have no idea. Is there any way you could get it on videotape? I think that will be best in helping the doctor make the decision. My dd has had some strange seizures in the night where she will look like she is picking at the air, or picking at her body, but there is always a sort of rythmic quality to it and you can tell that she isn't dreaming. She's also had other seizures where she's made strange faces, but like I said, there's always a kind of rythym or repetetiveness to it. So I don't really know. I would go with your gut on this one and see what the neurologist says. Even if they are just night terrors, I
m sure they'll still have some great advice for you.