So, I really struggle if people I'm not that close to insult me. 

I think this comes from the fact that I hold a core beleif that I am a terrible person and if anyone insults me or suggests that I'm bad in anyway it just reaffirms that beleif. 

I have a full on phsyiological reaction like my body instantly goes into fight or flight mode or something and I start shaking I feel intense anxiety if it's a really full on situation I might have a panic attack. Not be able to speak etc. 

Has anyone else experienced this? Is this a part of BPD? How on earth do I manage it? Someone has just called me a name on Facebook (completely unprovoked) and my whole body is just freaking out as if I've just been threatened with a gun or something. It's really intense. 

Has anyone got any ideas?