It's really screwed up how in my world everything is upside down. I've always thought I wasn't sensitive to criticism but it turns out I am. Okay that makes sense at least, together with the borderline. But I'm not sensitive in the way that most people are.
It's okay for me when people say that I did something just mediocre. Or not very good. It's ok if someone says I'm not good at something. But what really triggers me is when something I hear for me implies that my "not enough-ness" is an intristic part of who I am. That my "me"-ness is what is wrong. I think that what I wrote so far is true for everybody. Except that for me some weird things trigger this way of understanding someone's criticism.
For example if someone says "you won't get it anyway" or that something is "too difficult for you". If I feel they're about to give up on me because I can't do something as good as they expected me to. Also if someone says I'm not confident enough or too shy. Or if I cannot follow their line of thought. Being rejected for who I am hurts enormously, and triggers anger, because I can't change the reality just by my will, it's not some open-source matrix that I can reprogram.