I have been taking 10/325mg norco for about a year and before that lots of vicodin. I am currently taking 3 norcos and 1 about 20 minutes later at night when i get home from work. I am an ex football player and my knees and neck hurt all the time but im afraid Im destroying my body... I am starting tapering tonight by taking only 3 norcos tonight... I already feel kind jittery this sucks. Any advise?