What is the life expectancy of a 25 year old female with lupus and dilated cardiomyopathy?

No answer: There are way too many variables that I don't have the information on to answer that. Obviously, you are anxious deliberating this at age 25. You can live a normal life span with lupus. You can also live varying amounts of time with dilated cardiomyopathy - it depends on severity, co-existing conditions, your general health otherwise, & most important, your willingness and ability to live healthy.