I hear you on all of that. I've been told I'm too sensitive, and it annoys people. To me, it feels like they're being cruel to me, and then laughing at me when I get upset by their cruelty.
Some people are overly sensitive, and we don't choose to be. We were born this way. I feel the same way about crowds, and traffic - it's all too overwhelming, and my senses are constantly bombarded, to the point that it makes me feel dizzy and sick.
Sorry your family doesn't understand that. My sis-in-law is even more emotionally sensitive than I am, and will misunderstand things that were meant to be nice, and cry. And we apologize to her, instead of telling her she's stupid. I don't understand how that's so hard for other people to understand.