“…[9][10][11][12][13][14][15][16]24,27,32,33,45 During flares, participants reported a wide range of impactdfrom difficulty concentrating, irritability, anxiety, drowsiness from pain medications, difficulty sleeping, and cancelling social plans to leaving/ staying home from work or school, staying in bed or close to a toilet, going to the emergency room, and feeling depressed and occasionally suicidal. [9][10][11][12][13][14][15]27,45 The degree of impact tended to be related to the intensity, duration, frequency, and unpredictability of symptoms, particularly pain. 9,13,24,33 Findings for flare frequency persisted in 1 study after adjustment for average pain intensity, suggesting that flares negatively impact participants' lives over and above typical pain intensity.…”