I have Fibromyalgia and Chronic Myofascial Pain. I am also ADD?I take Vyvanse in the morning so I am normally not tired most of the time. Sometimes I seem to have fits of fatigue that come and go in the evening and was wondering if anyone else has this problem?. Does this also mean that I am suffering from Chronic Fatigue syndrome that is being covered up by my ADD medication? Just wondering? I can't get out of bed without my ADD medication.