How long until you feel normal? It depends on the opiates you were taking, in what quantities, for how long, your personal physiology. It really depends but if you give us some more info people can probably give you a vague idea.
In my experience the daily obsessing about drugs does tend to die down and get easier, you can make changes like getting involved in new positive distractions and working out relapse triggers that should make this much easier. The really emotional thing is normal, it should ease off fairly quickly with the physical withdrawal but if you have been using drugs to deal with emotions or simply using them so regularly for such a lng period that you are not used to dealing with them sober then it's likely there will be a pervading increased emotional response. This can be a good thing though making life more colourful and if it's too much then there is llearning that can be done to start to deal with them in a more positive manner!