PTSD, Attachment Disorders, Eating Disorders, Panic Disorders, Depersonalization, Derealization, Dissociation,
Anxiety, Depression, and the like are VERY REAL
DISORDER. Many of them have chemical components to them, but they also have many other emotional, behavioral, and psychological components to them. They are highly treatable, but it takes a good doctor and therapist.
As for the persons initial question, there are a wide variety of disorders that can occur due to childhood trauma.