I imagine the largest issue is this test was written by people that had a lower IQ than you. Not to mention it was geared towards people with a substantially lower IQ (perhaps that was already mentioned). The same issue is going to come up with doctors and therapists. And frankly, with everyone you meet in life.

I think those of us who have high IQ's (and especially with the higher they get), the harder it is to relate to anybody and to understand how other people think and why they do things. This in turn leads to an almost desperate loneliness on top of an already agonizingly acute awareness of the world.

You've heard the saying that ignorance is bliss? Take the converse: awareness is agony. I believe there's correlation between a person's intelligence and susceptibility to depression etc.

I don't think you're over-thinking; in fact, the rest of us are UNDER-thinking and I found your interpretation of the lying question to be fascinating.

Also to comment on your assertion that your thinking isn't normal, wouldn't it depend on how you defined normal? If you're comparing the way you're able to think with the abilities of the average person, and you consider average to be "normal", I suppose it would be abnormal. However, if you're considering normality in terms of gauging functionality (as in is your mind functioning correctly compared to itself and not to others), then you're normal. You're about to fall into the trap where one assumes that if one is different than others that there must be something wrong with them.

I'm probably not saying anything you don't already know or particularly novel, but hopefully it's helpful in some way. Good luck with getting the disability no matter what happens with the test. That's the important thing here of course.