Ow !   What's the matter , Andy ?   I slipped and fell downstairs .   Have you hurt yourself ?   Yes , I have . I think that I've hurt my back .   Try and stand up . Can you stand up ? Here . Let me help you .   I'm sorry , Lucy . I'm afraid that I can't get up .   I think that the doctor had better see you . I'll telephone Dr Carter . The doctor says that he will come at once . I'm sure that you need an X-ray , Andy . 