opiate withdrawal
"I started using Norco about a year and a half ago.  At first it was for a legitimate reason, my lower back.  I had lumbar strains my entire life.  Sometimes a serious strain would incapacitate me for about a week.  So a friend of mine said I should go see this doctor of his because he'll prescribe Norco's.  Well, excited as I was to get them, I was even more excited I got a script for 100! I told myself 3 a day, no more or my tolerance will lower.  Before I knew it, I was on 8, sometimes 12 a day.  After 1 year, I couldn't get my script on time.  I was going to go in withdrawal.  On day 2 of Clonidine.  Soreness, like from a workout, is all I have felt.  Using the patch.  Best thing to happen since I started this behavior.  Ask your doc!"