Sub isnt to be taken every once in awhile when you are having an off day. Are you doing anything with recovery care?
Why would u even chance it? Like most of us, it sounds like more of a mental crutch then anything else. Look at the question people ask on here, they are not wanting to actually quit only looking for permission or justify using "a little bit" or "another drug" if you read some of these post without trying to relate to them you would think this post are abosuluty insane. It sounds like you've made ahead as far as not using, and that's GREAT! As far as not feeling normal so you can use again that's just the addictive personality many deal with. I'm sure anyone close to you will be able to tell if your using again and thier eyes your not the normal person they know. You may feel normal/comfortable but everyone around you will be able to see the difference. I'm wondering why you would jeopardize any clean time you may have? Obviously there is a problem or you wouldn't be on this site asking questions on Addiction & Substance abuse! Best wishes & Godspeed