I haven't been dx with lupus, but when inflammation is active in my body (I do have RA), I also experience neuropathy in my toes and fingers. Once the inflammation is under control, the neuropathy gets significantly better. You can have inflamed nerves with no obvious swelling of any specific joints. The mtx I'm on has been controlling my disease very well, and I haven't experienced too much of the neuropathy for the past year. Lupus is also associated with joint problems, and I believe the neuropathy is quite common; that's why I have not ruled out SLE for myself, nor has my rheumy. I hope your inflamed nerves settle down some since it will be a while before you see your rheumy again. I believe several members of the lupus forum currently take neurontin for neuropathic pain.
Current dx: Rheumatoid Arthritis
Suspected dx: UCTD/Early Lupus
Current Meds: Enbrel, Plaquenil, Aciphex, Ultracet, Zyrtec, Allavert-D, Zantac, Tylenol PM
Past Meds: Relafen, Vioxx, Mobic, Voltaren, Sulfasalazine, Entocort, Prednisone, Humira, Reglan