Tw: mention of suicide/self harm.

I'm trying to figure out if this is linked to BPD. I'll think back to embarrassing moments and no matter how small the thing was, no matter if everyone has SURELY forgotten it, it makes me want to harm, even kill, myself or cut off everyone who saw the incident, something I'd imagine is NOT a normal reaction to remembering something embarrassing you did.

Is this BPD related? If so, has anyone found a good way of letting this stuff go?