Hi Ocean, have you ever had your jaw checked for abbesses and cavitations? What happens is that people get an infection in their jaw normally from a dental procedure like having a wisdom tooth taken out, the infection then spreads over time and literally starts rotting the jaw bone, and the infection can then enter the blood stream and cause symptoms everywhere, this may explain the facial pain if the infection is flaring at times and hitting a nerve in the jaw it would explain it appearing in several places, and the flushing could be explained by the body reacting to the infection flaring.
There is a member of the forum called Ian who was diagnosed with CFS but later found that this was the problem and was cured after it was treated, he seems to know this subject very well and has posted about it here
http://forums.phoenixrising.me/showthread.php?9212-My-recovery-story maybe if hes still around you could PM him about it.
Cant promise thats what it is, but it sound possible.
Regarding Lupus rashes, they vary considerably, and the ones you see in the pictures are the more dramatic ones, you dont even have to have this rash to have lupus, the only way to tell is to have the right tests done, which are more than just the ANA test.
Hope you track down the cause soon!!
All the best