43yr female 5'5 140lbs headaches, blurred vision, butterfly rash across face, have had 2 cervical fusions. dr treated rash on face with steriod cream, and steriod injection, its clearing up some on face he also pulled blood and tested for lupus, with a ana test it came back negitive. I have now a few days later noticed a knot and a rash on the back of my neck. with all these symptoms also comes exhaustion and brain fog. please any info could help should i go to the e.r.