i get that too. and its a lot, im not exaggerating.
i cant say its the exact same in your case, but ive always learned that if you feel a certain way inside that "energy" will be projected to other people in a sub-conscious way. whether you intend to or not.
Its wierd, for example, if I feel good about myself that day, I can "see" the people that were once staring at me, giving frowns, wierd looks dissapear because i chose not to look at things that way.
as somebody said before me, yeah its a mixture of being sensitive and negative.
being sensitive is just embedded theres really nothing i think that can change that, you can mask that, but it'll always be there.
being negative is a trait from the experiences/enviorment you were given. you took it from those past times to give you that perception that you are not good enough. it starts from thinking positive and continuining to do good for yourself and you'll soon discover that everything that once looked dull and gloomy is now bright and vibrant.
went off topic a little bit but i thought it would be relevant as it has been in my personal life.