When people develop some kind of theory, sometimes they need to stop and see how it compares to the real world, before they invest too much intellectual effort in something that might not stand up under such examination, which idiomatically can be called a reality check.
No. It is not idiomatic English. We do not "make a check and balance." What do you mean? Perhaps you mean "check in with you" that is to see what you're up to, or perhaps you mean "rein you in" meaning to restrain some excess of yours.
Reality Check - band - was created in 1996.
Reality Check - producer - was born on 1994-11-18.
you need a reality check. please come back to reality.
The Reality Check - 2011 was released on: USA: 11 November 2011 (internet)
Reality Check - 2002 is rated/received certificates of: Germany:16 USA:R
The cast of Reality Check - 2003 includes: Katy Bartrop as Hairdresser
The cast of Reality Check - 2005 includes: Ron Butler as himself
Reality Check - Jassi Sidhu album - was created on 2003-07-01.
Reality Check - 2006 II was released on: USA: 1 March 2006
Miss America Reality Check - 2008 was released on: USA: 4 January 2008
Reality Check - 2012 II was released on: USA: 10 August 2012 (Tucson, Arizona)