A Guilty Conscience?

K., the main character of The Trial by Franz Kafka, has an interesting aspect about him.  He claims to be an innocent man.  He was repeatedly said he doesn't even know why he is on trial.  However, anytime he ventures into the court area, a strange thing happens to him.  He begins having trouble breathing, and desires to be removed from the situation.  He said "'So please, be so kind as to help me on my way a little, I'm feeling dizzy, you see, and it'll make me ill if I stand up by myself,'" (Kafka, 50).  The dust in the air nearly cause him to pass out, and nothing seems to be able to help.  Yet, upon leaving the area, he finds himself feeling better almost immediately.  This strange phenomenon could be due to a guilty conscience.  It could be a below understanding rejection to the area his subconscious thinks will make him be punished for his crime. His strange behavior and reaction likely symbolizes at least some guilty for whatever crime he allegedly committed.