Sounds like you are doing RCs in waking life on auto and without actually doubting reality, and in fact, you are sure that you are not dreaming, which is completely wrong way of doing them! It's not the action of reality check itself that makes us lucid, it"s the awareness and questioning mindset that we gain while doing them IWL what makes us lucid in dream.

When you do reality check, completely believe that it may be a dream, then look around for anything suspicious and dream sign, then do the reality check itself and put emotions into it, like "Wow, am i dreaming?", and expect it to work, and finally, never ever think "Nah, not dreaming" or anything similar after doing reality check.

Check out this thread too:
http://www.dreamviews.com/dild/13212...ods-dilds.html 
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