…that bad feeling

I've hurt someone, and now i feel so bad.
But not because I feel guilty, because I don't know why are they sad.
I hurt so much people, and I don't even feel that I'm sorry.
I don't understand what's wrong with the things I do or say.
I think all I did is ok.

And now I feel that bad feeling,
when it seems that the heart is solid,
when it seems that something is wrong with me,
but I think that something is wrong with them.