Can I sue for medical discrimination?

Question Details: I am an older single woman with no kids or family. I live in a rural area and do not know anyone very well within 1000 miles. A few years ago, I had a colonoscopy and the doctor had to tell the hospital that he OK'd my having it without someone at the appointment with me and that was the only reason the medical center allowed it. It was found I had polyps so possibly that procedure saved my life. I am back in that situation again and have been told that the medical center will not let me have this possibly life saving procedure unless I have someone to sit in the waiting room during the procedure. This "someone" does not have to be a friend or family and can just be someone I pick up off skidrow and pay $20, as long as they are over 18. This is ridiculous. I have transportation to and from by a transportation service and they are discriminating against me due to my singular status and quite possibly killing me. I have to wonder how many people these medical facilities have refused service to, who have later been diagnosed with colon cancer. This seems like it could be a class action lawsuit. What are my options?

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