I love this thread. "Does anyone feel like they don't belong here?" ... avalanche of agreements ensues! I guess this is a common feeling. I believe there's an optimal niche for everyone, the trick is getting good at finding more compatible minds and situations.

As for the (also apparently fairly common) feeling of being "too sensitive for the world", maybe the truth is that the world itself could use an attitude adjustment. Maybe it's not you after all. Have you ever looked at the comments section for online news stories? How many times do we see comments like "I'm trying hard not to lose faith in humanity now", or "Okay that's enough internet for today - back to bed." etc? Sometimes the world really is messed up and needs some improvement.