Hi, I am new to the site so I was looking back at some of the posts. I can tell you this... my daughter whom was dx with Fibro years ago, also has Lupus. Her blood tests are all negitive, which I understand is unusual, but she has a lot if not all of the symptoms.
She started with the skin lessions on her arms, chest, face, neck. I got her to go to a dermotologist that would biopsy one of the lessions right away. Results came back Lupus from the lab at the University of VA.
I would recomend that if you have any skin problems go to a dermotologist and get a biopsy. Then you will know for sure.
Hope this helps you, Grammy