Hmm.
I can really relate to you. I THINK MAYBE, but I don't know.
And I could be NT, for all I know, but I think I know how you're feeling, I posted this awhile ago http://www.wrongplanet.net/postt155171.html
And IDK if it's exactly what you mean, but a lot of people here related to it. I was really glad because I didn't know WTF to do.
I wasn't depressed at all, not really *thoughtless*, but kind of. Just like...empty, because I was FULL of information. But it had nothing to do with *anyone*. Nothing in my head was about people, or was related to anything else in my HEAD.. Just space...I couldn't relate to *anyone*. Couldn't really have conversations.
I wouldn't expect many people to understand, but, for what it's worth, it's probably not permanent. I'm able to talk with/understand people much more easily now. I guess it was burnout.