"Atheists the voice or feeling that tells you not to do something, what is that called?"
If it's a voice it's called an "inner monologue" or "auditory hallucination" depending on your mental state. If it's a feeling it's your Conscience which is simply a set of rules instilled into you by the society you grew up in as to what actions are acceptable.
Why? Let me guess, it's "Gawd" speaking to me, right?
"How many times have you decided to go do something and you hear the little voice in your mind that said don't do that? Then you go and do the opposite and something negative come from it. How many times have you felt that you shouldn't have done something and you went and did what you felt that you shouldn't have done and something negative happened after you done it? It happens all the time and it has happened with atheists as well as religion people."
And this surprises you? Are you a mental midget or what? If I know something is a bad fucking idea and go and do it anyway and then, ta-da, something bad fucking happens that's not evidence of your god you moron. It's evidence of an inherent understanding of cause and effect.
"What do you think that feeling is?"
Not god. Indigestion maybe, but certainly not god.
"What is that little voice in your head that have told you time and time again, hey don't do that and you wind up doing it anyway, only to regret doing it later on?"
You must have real self control issues or something. I rarely find myself doing something I know is wrong or a bad idea. You, apparently, do this frequently.
"Let me just say, IT'S NOT YOU."
No, it's some unevidenced, nebulous, unsubstantiated, unexaminable, omnimax "entity" that floats around in some realm that also can't be evidenced or examined in any way and said entity is very, very interested with what I happen to be doing right this fucking instant because, obviously, any being that exists eternally and is omnimax would find me unavoidably interesting.
"Now this is where I have to be harsh. If you have a feeling and a voice tells you not to do something and you go off and do the opposite, and you believe deep down in heart, this is a part of you speaking or feeling. Than you are fighting against yourself which shows that you aren't too bright. Because anyone in their right mind will listen to their inner voice and feeling and not do the complete opposite."
Bullshit. And if you think so you've never met another human being in your life. Humans do all sorts of incomprehensible, inane and outright stupid shit all the fucking time, whether it's "right" or not.
Take an introductory psychology class. There's more motivations to human behavior than simply whether or not something is "right" or "wrong" to do, and those motivations tend to be far more compelling.
"When you do that you are fighting/disagreeing with self. Those warnings are the voice and the hands of God. Not something that some idiot science had told you about your so call brain activities."
Brains exist. I know, I've seen them. Your god, on the other hand...
"You want proof that God exist, try giving him the credit when you are warned about things you shouldn't be doing instead of giving yourself the credit."
As soon as I see that he's done anything he'll get credit for it.
"In all fairness if you are doing the opposite of what your inner voice is saying, than something isn't right with you anyway."
Are you actually from this planet? How old are you anyway? Maybe you just lack life experience.