Since 2008 was a while ago, it wouldn't hurt to get your hormones checked again and maybe do a full workup with the endocrinologist. Thyroid issues can accompany lupus and other AI diseases.
Also our autonomic systems can get messed up as well and there are certain conditions that are linked to it. Our autonomic system controls our body temperature among other things. I would definitely at the very least bring this up to your rheumy and see if there is any connection.
DX:SLE, Sjogrens, Raynauds, Migraines, Occipital Neuralgia, Morphea (Localized Scleroderma), Iron Deficiency Anemia, IBS, Diverticulosis
Meds:Prednisone, Plaquenil, Sulindac, Tramadol, Topamax, Xanax, Imitrex, Fiorinal, Prenatal Multi, B12, Vit E, Calcium, Fish Oil, Biotin, Ferrous Gluconate, Baby Aspirin