They may not be looking at the exact form of the disorder that is affecting you, but at least it's close. You might want to contact the authors and see what they can do. The posted article points out that researchers are moving into studying more rare and complex disease forms, so your case might interest them.
GWAS = http://en.wikipedia.org/wiki/Genome-wide_association_study/. I have no idea if they are using the same technology as in the posted article, but it's a very recent study (2009) so it's an active research area.
As an aside, I really feel for you, man. My mother used to run a care facility for Schizophrenics, so I grew up seeing some of the effects. They usually did not show symptoms as severe as yours, though now and then there were more complicated clients. Not a pretty sight, even for those with more "manageable" forms of the disorder. I can only imagine a case like yours.