I think you suspect something is wrong because you took extra Zyprexa and are asking for advice here. Listen to your gut feeling that's telling you something isn't right.

I've found that when I suspect something is wrong, I tend to be right about it. But if you're still uncertain, your therapist and pdoc are always available for you to talk to, and they're great for giving any kind of advice in how to deal with things like this. The longer you wait to talk to a mental health professional, the longer you will be tormented by these thoughts and feelings. Why not talk now to someone so that you feel better faster? I always like talking things out with my pdoc or therapist.