What I do know is that when a person is first asked to explain what is wrong, they may find it almost impossible to articulate exactly what the problem is. They may not yet have matched words to the feelings they can sense in the hidden rooms of their mind. They may still have no clear ideas about the "what", "why" or "how" relating to the origins of their difficulties. Instead of words, their angst may be expressed in behaviour which may be hard for them, or anyone else, to make sense of and can manifest itself as irritability, anger or withdrawal. Sometimes they will delay seeking help until they are in a state of crisis. It's not easy to ask; I struggled at first, too.