My "friend" who is very smart is also very perceptive and emotional. He doesn't uppen up with everybody, but I can feel it.
I am sensitive and emotional because I developed a attentive behaviour to other people responses and needs. I am an observer and the human behaviour is a thing that interestests me. But it was not only the mental health issues speaking, I think I am the more messed up sibling because I am the most smart (whatever, I had an very highly inteligent uncle I suspet commited suicide, it runs in the family, inteligence and mental health issues, I have to deal with both...).
Sorry for the s word. :/