My girlfriend has learnt how to black out on will, though she does need to be under a black, or in a small closest or something. She originally taught herself to do this because of domestic problems. She usually will do it now if shes extremely upset.

But, she showed me one time. She warned me that she could be out for two minutes - Or two hours. I thought it would be kinda cool.. But what I realised that when she was out she was sort of .. Half seizering (Sorry can't spell). And she would randomly twitch. I don't like her doing it, it's scary.. I was wondering if it could possibly do something to her brain or something?

For example, she could blackout randomly whenever?

Please answer if you have any idea about this.

I don't know, but its probably not good for you. Losing conciousness is usually caused by something affecting the body adversly (blow to the head, lack of oxygen, etc.). It is never a good thing for the body to lose conciousness (besides sleeping). I'm not a doctor, but it seems like she does this by somehow depriving herself of oxygen. That of coarse, is bad. Very bad. There's no telling what harm this could do to her, especially to her brain, and one day, she may not wake up. Whatever problems she is having, you need to help her find another way of dealing with them, before she hurts herself. Any damage that she could do to herself would probably be permenant. Again, I'm not a doctor (hell, I'm only 17), but this what I think could happen (my brother is an EMT so I have some medical knowledge)

If she has domestic problems so bad that she is forcing herself into some sort of unconscious seizure state, she desperately needs help.

This is not cool at all. Try your hardest to encourage her to seek real help.

Agreed

have her just go to a walk in clinic and they can direct her to the help she needs.....

i know when i black out its often because i am extremely stressed. i know i twitch while still shallow [trying to maintain control of violent impulses].
im quit afraid of blacking out though [as for mentioned violence].
worst of it i cant remember anything.

i suggest she seeks other ways to deal with stress. before her subconcious forces her.

Is there anything else apart from going to the doctors???

She's terrified of doctors, (Shes had some bad experiences with them) And she won't even go there if she had the flu just to get something like anti-biotics .. I doubt theres the slightest chance she'll go to the doctors. Or anything of the sort..

Thanks guys though, for the kind responses.