I am 46 years old and Doctors are trying to figure out if I have Lupus. I have it on my face, but my joints hurt so bad sometimes that I can not get out of bed. Now, I just had an MRI of my shoulder and Dr. told me that I have a tear in my rotator cuff, and tendanopothy. What is that and how is it treated. My shoulder hurts really bad. With skin lupas, will I eventually get the more serious Lupus?