Yes, I think I know what's wrong with you Peter if I may use myself as an example. In eighth grade I had a panic attack that took the form of a cataclysmic dissociate episode. I was lying in my bed starting at the ceiling, sweating, and unusually anxious even for how anxious I was at that time. Then all of the sudden BAM! I didn't know who I was, my own name, who my mother was, anything. It was absolutely terrifying, PURE TERROR like the kind you could imagine only in hell. That episode slowly came down over the next few hours and then further over the next few days. It took me a few hours for example to remember all the details about myself. Anyway, from that point onward for another 6 months or so, I was in a constant state of low-level dissociation intermittent with intense dissociative panic attacks. During this time I did not feel that I was myself but rather that I was a person transplanted into this other kid's body, give his memories, and knowing all about him, and yet not being him. It was as if I could at any moment be sucked out of my body and into another person's body, get their memories, know about them, and feel that this was the real me all along and that I was back. Of course this never happened to me and the episode ended when I came clean to my mom about what was worrying me. But this was the feeling I had during those 6 months. I would see my picture, see my name, see my body, feel my arms moving and my mouth working as I spoke, and I would feel..this isn't my body, those aren't my friends, that's not my mom. This is all wrong, I'm not this person, I've been put in this person's body and life somehow. I shouldn't be here.

And it seems to me that you are experiencing the very same thing. You know who you are experientially and you know that it doesn't match with "Peter Ward". I strongly suspect that you are having a dissociative episode and I'm willing to bet it's been getting stronger over a period of days or weeks. It didn't hit you all at once like it did me but it's gradually working up to full strength.

Whatever the case, I think you should go get professional help immediately. That's a very scary and horrifying feeling that you are describing and you need to fix it right away. Also, if I am right about it being panic disorder then it could result in acute episodes in which you feel you are going to die, can't control yourself, don't know who you are at all (name, mother, etc), or other horrible things. Get it checked out and medicated and then eliminate this **** before it gets any deeper. That's my advice.