Is Chronic Back Pain And Pressure In Head Sign Of Lupus?

I have recently been seeing several doctors over the last 8 mothts due to some odd symptoms, one pupil was VERY dialated and the other was fine. I saw a Neurologist, had the CT Scan and the MRI, and a battery of blood tests (including the one for siphilys) Everything came out clear except that my ANA was abmormally high. I was then sent to a rheumatologist who did another blood test and seems to think I may have Lupus, but it is not conclusive. I am in Wait and See mode and have had a few things pop up and I m not sure if it is connected to the Lupus possiblitiy? or is it something else that I should get checked out? or am I over sensitive to symptoms because of the possibility of Lupus? I m now having cronic lower back pain that is worse in the morning and gets a little better as I move through the day (I ve been taking advil), aslo when I m lying in bed and move to look above my head, I feel a painful pressure in my head that goes away once I lie flat and I have been putting on a little more weight than normal for me. I d appreciate your opionion.