I am taking savella, lamotrigine, dexedrine, tramadol, avapro, singulair, nasonex, lasix, crestor, hydroxyzine and hydrocodone. Every two or three weeks, I have flu-like symptoms for a day or two. I don't know if any or all of these cause the symptoms. I have fibromyalgia and most of these are to reduce my pain and fatigue, but nothing really seems to help. Maybe just make it worse.