I Have Had Chest Pains Since I Was 14 And

I have had chest pains since I was 14 and still have them at the age of 37. Numerous test have been ran but nothing comes from them. At 24 years old I was swollen and after 3 months of being swollen I was admitted to hospital and they said I had membranous nephropathy. There first instinct was that I had lupus. Since then I have joint pain, cramping in my toes and feet, swollen ankles, paralyzing neck and back pain, and of course my chest pains. My question is could I really have lupus?