Darry has high anxiety and OCD which is why he was so stressed when pony broke curfew. His worst panic attack was when pony ran away.
Two-Bit has B.E.D. (binge eating disorder ) he eats a lot and won't stop. He see's it, he likes it he won't stop. Which is why two-bit is "stocky"
Dally has antisocial personality disorder which Is why he shows pattern of disregard or violation of, the rights of others. He had impoverished moral sense or conscience and a history of crime, legal problems, and impulsive and aggressive behavior.
Steve has schizophrenia, which is why he could never make friends with pony. Steve is unable to make emotional connections clear and he's wild like soda because Steve suffers from visions only he see's
Soda is dyslexic which is why he failed school
Johnny is depressed
Ponyboy suffers from insomnia! Pony has trouble sleeping or staying asleep because he has insomnia
