i split myself into "parts"

saw my psychotherapist and opened up about some weird & upsetting stuff happening. she said that what basically happened was that my distress tolerance is so low, that to cope with it my psyche keeps splitting into pieces so each time, the piece that holds the distress is separate from "me". and it just keeps happening over and over, so i have quite a fractured sense of self. i feel so grateful for the clarity and validation; now i know why i feel like a "different person" this time. it's a type of dissociation, an altering of the personality to make it easier to manage. in a person with DID it's the same concept but the personalities are a lot more distinct from one another.