I had a strange crisis that landed me in the ER twice in one week. My spine felt on fire, my legs, arms, back felt like someone took a blow torch to them. There was a low grade fever and my face was flushed. I was given steriods and anti inflammatories (vicodin didn't touch the pain). My face hardly ever flushes even with a temp but it was red for many hours. Finally it seemed to go away by itself the meds barely helped and the drs had no idea what was going on, called it a FM flare-up.