Did the Big Bang cause an outward push of gravity? There is a theory that the big bang’s blast caused an outward push, a kind of reverse gravity if you will, of our universe and everything within it.
My question is how could this have happened? If it really is a kind of reverse gravitational push, this implies something we cant quite comprehend with our minds. Because general relativity proves that gravity is caused by heavy massive objects pulling and curving space time around it causing other objects to roll along it’s valley.
So an outward gravitational push would imply that maybe because of the huge energy blast of the big bang the object causing it would become in a negative energy state causing it, according to E=mc2, to have a negative mass and causing this object to make a kind of mountain in 2 dimensional space time setting our universe in motion rolling downwards this hill. And while rolling kind of unfolding in our current universe. Abd so explaining the accelerating expansion of our universe.
Can this be a possibility or am i suggesting something radical here?
 A: The big bang is not "inverse gravity." It is gravity as GR explains gravity (it's not a force, it's curved spacetime, etc).
Your intuitive picture of GR is not exactly right. To really understand GR you must look at the actual equations and not popular analogies.
The possibility of the big bang was in Einstein's field equations from the beginning. He introduced the cosmological constant to avoid such a thing. When Hubble found that the universe was expanding, the cosmological constant was taken to be 0. Now, we know the expansion is accelerating and the cosmological constant is not exactly 0.
Susskind. Lectures on Cosmology.
Tegmark. Lectures on Cosmology.

Because general relativity proves that gravity is caused by heavy massive objects pulling and curving space time around it causing other objects to roll along it’s valley.

GR also says that very small amounts of mass/energy density also have important big cumulative effects. The cosmological constant, for example.

Can this be a possibility or am i suggesting something radical here?

It seems like you're trying to explain something that is already explained by GR. But I can't follow what you're saying. If you're trying to explain why the big bang happened then I  can't comment on that.
