Perceived Slights Make Me Angry

Part of being borderline for me is going bonkers over slights or perceived slights from others. That happened last night and suddenly the whole world is against me and EVERYTHING looks bad. When I feel that way there is no relief to be found until the "storm" blows over. I was/am still a bit completely unhinged, my sense of self is torn apart, my beliefs, my interests, EVERYTHING gets sucked in when I go down. Luckily I have managed to hide it pretty good from others and even myself at times. Someone once mentioned needing 'reality checks' from others, and sometimes I feel like I can trust other people's realities and other times I don't. Just depends on where I am at... and that changes a lot.