The schizotypal behavior/beliefs thing is funny; I've noticed in the past that sometimes I'll become almost genuinely convinced that everything around me is unreal, a stage, and as a result I'll be a little funny. A few times I've been in this mood out and about, and I'll come across someone familiar, and I'll say, "Hi, how are you", and he'll say "Good, you?", and I'll almost choke responding "good" in return because it all seems too funny and formulaic, as if I'm in a movie or something.
Is it this kind of 'reality is a stage' mood you are talking about, or something more insidious?
On an unrelated note, are you on PerC with the same username? I was on there until recently, when I realized I was wasting too much time so I went on a campaign to get a two-week ban. They permabanned me. The PerC mods are absurdly serious about people joking about getting banned, and former members who were banned, etc. Like my life depends on them, or something... I was the guy who emphemerality was trying to type at the same time as you.