I've honestly have never experienced anything near what you described, I have raynauds & my fingers/ hands & feet/toes will burn or go numb but they turn purple or blanch white (almost an unreal look), but they're always ice cold.
Just out of curiosity if your on any medications-now or since you said you've had this prior to the sle dx-are you on?
Do you use creams or lotions? Bengay or arthritic rubs?
I could be wrong but it sounds more like an inflammation issues, perhaps caused by an irritant?