I think I have damaged cartilage or tendon in my knee. I can not stand on it, walk on it or bend it without excruciating pain for a few days now. I went to the doctors and was seen by a nurse who had a room upstairs. I told her how much pain I was in and I would find the stairs either very painful or impossible, but still she made me climb a set of old wooden stairs to her room. When I say climb I really mean drag myself up using the bannister while crying with pain at every step which took a good few minutes. I am 65 and feel this was not the way to treat anyone!