Roland Roland, thank you for your comments.
Language is only important when it involves potentially dangerous actions.
Mental health and illness are problematic metaphors only if people literalize the metaphor to the point of damaging the body because of emotional rather than physical states. The damage done to people because of professionals confusing metaphor for reality has been extensive and goes on. I don't know the answer. I wonder why people choose sick over unhappy all the time. We hear people say, I hope the dr.