I never picked up on the heights thing.. I always thought Edgeworth got Gumshoe to get books for him because, well, it gives Gumshoe something to do that's constructive when the detective hangs out at his office.
Then again, I do see him as probably being at least mildly claustrophobic due to the whole elevator=enclosed space thing.
Sex after trauma in general just sucks, though. :/ Someone with the screaming mimis is hardly going to be sexy while doing so. Now.. sex interrupted by an earthquake and seeing what happens might be a fun fic to write...