Some people feel energized by opiates, it depends on how the individual's endorphin system, relevant receptors and metabolism all react to their presence, however rest assured that most of cannot stand and are likely to pass out in mid-conversation due to said presence.
Norco contains hydrocodone - some would tell you this wouldn't be as bad an oxycodone or heroin withdrawal, but I disagree. What I've seen is that withdrawal severity depends on the duration of continuous physical dependence, not on the strength of the opiate. Length of withdrawal is largely dependent on the same thing, but things like amount ingested daily (more is worse, obviously) and continuous stable blood/plasma levels come into play here. Like if you were the kind of person who woke up in the middle of the night having to take pills, your withdrawal is likely to be a real bitch.
Empirically, there is no way to not experience a withdrawal as of yet known. The best way to make things less hard on yourself is to see a doctor about gradually reducing the dose slowly (tapering) over a certain period of time (they usually use the length of your physical dependence as something of a ruler). Even with a scientifically perfect taper in harmony with all your bodily systems, you'd probably still experience some withdrawal somewhere in there, though it would be mild. Alternatively, and this works better for some people, there are options like Suboxone and Methadone, which you take to replace the drug you're currently taking, then more painlessly (again, this varies from person to person, it is sometimes more painful) taper off of that one.