A little bit about gravity

First off, I am not a scientist, nor do I attend any post secondary education.

I have theory, we all know how gravity works.
The earth spins, and as it spins, it pulls whatever is on or near it, towards it. The moon is caught in an orbit because it is in the earth's gravitational pull, it will not fall into the earth for a very very long time, but I do believe it probably has been inching it's way since it was caught, or formed. The earth also rotates around the sun, which is pulling the earth into it, slowly but surely. It has been reported recently that a planet in another solar system is so close to it's sun we may end up seeing it pass into the it at some point before that star extinguishes, though I'm guessing with a planet so close to it, the death of that sun will probably be fairly large.
So we rotate around the sun, the moon rotates around us. The sun is moving through the galaxy, With the whole solar system tagging along. I'm assuming its rotating around the core of the galaxy, probably not in a perfect circle, just alot of the planets of eliptical orbits, our galaxy may, I do not know for sure. If the solar system is doing this, I would also assume the galaxy is possibly rotating around the center of the universe, or it's just traveling as scientists keep saying the universe is expanding.

Taking all this into consideration, we are probably traveling extremely fast, which would mean our bodies have a tolerance that we do not even understand. If the entire universe stopped moving, what would happen to our bodies provided we could be in a space ship that is able to hold oxygen as the oxygen, along with everything else on earth, would float away. What would our bodies do. We look at creatures of the deep, some ocean animals live their entire lives in such deep water that if they rose even part way to the surface, they would explode. And the opposite happens when a human is submerged a few hundred feet, we collapse into ourselves due to the pressure of the water. We know about air pressure having a similar effect, and that G forces from high speeds can have that effect, but in a particular direction.

I am thinking that with all movement halted somthing is likely to happen, I am not entirely sure what, but that is why I am posting this. I mean if we could possibly calculate how many inherent G's we are taking even just sitting in our chairs reading this, it would be amazing, but due to humans and all things on earth being created in this environment it would be very difficult to measure what we cannot percieve. Its similar to temperature as well, imagine the sun have life forms that can live in the inferno, their temperature system, if they had ever developed one, would start at one for them. And anything developing on an ice planet as well, would percieve their temperature in a relative way to how we percieve ours.

I would love to read responses to this, as I have never read anything even remotely similar to my theory.