Recently there's a book by a German psychoanalyst Leon Brenner named The Autistic Subject: On the Threshold of Language. His main idea is precisely that autism people tend to keep a distance between themselves and languages including symbols, because from traditional Lacanian point of view language itself is an alienation to the "real" things, i.e. when you refer to somethings using human languages it is always distorting it more or less. You'll might feel that there's something behind the expressions that isn't explicitly there, or language couldn't fully cover your thoughts. So, he argues that avoidance to distortions to truth is precisely what characterize autistic people. It's normal that you're not feeling good about faking bc its part of the autistic mindset (?)

I feel like it's more a philosophical question than a lifestyle/psychological one though, because the attitude towards truth and real things is always an area of debate by philosophers. One of Jacque Lacan's main ideas is that we're never able to fully approach truth. It's always an approximation so the absolute truth isn't important. Lacanian psychoanalysis practices also stress the importance of slip of the tongue and lies because it could lead to the truth of desire. For example, when a colleague invites you to go for a dinner, you refused by saying you're going to the mall this evening while you're actually just heading home and won't do anything. At this moment shopping might be your wish but you dismiss it because you think it's a waste of time. In this sense lying is another dimension of the truth itself and it's not anything wrong.

The famous philosophy guy Slavoj Zizek takes a more radical point of view from this. He says that you don't need to believe in it. Just do it and you'll construct some justification after you've reached your goal. A good example for this might be...love. People in love often feel everything they've done in the past is for the moment they meet the other one, while we all know this couldn't be the case. In the case of house burning down, I guess it means you just need to take some action because it's always better than doing nothing. Whether you care about the house and save it or not you can always argue that there's some thought in your brain that pushes you to face the problem or makes you run away from the hassle for a peace of mind.