I read somewhere that bpd can be compared to having full thickness, raw burns all over ones body as a representation of how it feels for people with BPD to try and get through a day where the otherwise smallest social interaction, look or body language change, can cause genuine alarm, fear of abandonment or provoke intense anger in someone with the condition. I imagine it must be really shitty to deal with as the sufferer and i generally feel like virtually everyone with BPD has developed the condition because they have been exposed to or have had to experience a higher number of traumatic life events compared to the general population. Ive often heard BPD be described as the form of PTSD that never actually got diagnosed so it just turned into BPD because it wasnt recognized that it started as PTSD initially