Los Angeles [US], August 17 (ANI): Actor , who was a cast member on ‘Saturday Night Live’ from 1986 to 1992, recently revealed that doctors found an inoperable tumour in her windpipe amid her battle with cancer. Jackson posted a new video for her “Is the Cancer Back?” Instagram series in which she shared her health update. She also estimated that she has roughly three years to live, The Hollywood Reporter reported. “[Doctors] cannot operate and cut out the marble in my chest that is laying on my windpipe, and eventually would suffocate me to death,” Jackson explained in the lengthy video. As f…