Losing ability to think?

[VforVendetta]

I'm not certain how far back it was, but there was a user on here who had something like 26 at once and couldn't get beyond that, and from what I remember he seemed relatively sane, so I don't think it's an issue. Your fear of it occurring is more likely to mess things up than anything- try to see where the fear comes from and see how you can overcome it.