my mom is 43 years old and has had a tumor on the back of her left knee for the past 3 years. she has been having chest pain the past month and a half. she has been to the hospitle and the tell her she has gur, depression, or she is fat. they also told her not to come back in less she is dieing or is passed out. she is now (7/16/2010) having the same pain but worse and dont know what to do. PLEASE HELP!!!!!!