She begins to have psychotic episodes and delusional symptoms and Freddie realizes that Effy has developed psychotic depression. ... In the finale of season four, Effy is once again out of treatment, and even following Freddie's mysterious disappearance is secure in that he loved her.

Was Effy Stonem bipolar?

“In the show, Effy really struggles with her depression and self-destruction. She suffers from bipolar disorder as well and there's this boy who tries to help her out of it. He tries his hardest to make her as happy as possible. He takes her on spontaneous trips and tries to make her feel good.

Does Effy have BPD?

The character of Effy, in particular, exhibits mental health symptoms people with BPD have identified with. Effy is scared to trust people and love them and often engages in self-destructive behaviors.