My orthopedic surgeon gave me 50 Percocet 5/325 to take the first couple of wks after surgery. I took 3 a day for the first few days, then 2 or 1 until I ran out. I also normally take Norco daily which I still have. Today was the second day without Percocet and I felt terrible. At first I figured it was FM flare up because I'm also on my period and that's a common trigger. Throughout last night and today I've been shaky, cold, sweating, hot, you name it. The old "flu" feeling as usual. I read about Perc withdrawals and many of the symptoms are the same as FM. Could I really be having withdrawals after just taking it for 2 wks at such a low dose? If I still feel this bad tomorrow, I'll call my Dr.