Inception

Assuming 'if your body is not under the effect of gravity then your dreamworld has no gravity' to be true. If your dreamworld has no gravity then somebody dreaming in your dreamworld should also not have gravity. Meaning the dreamworld of the dreamer in the dream is also all out of gravity. You can extend this to any level.

When you throw a stone up in the air it travels against gravity. The acceleration due to gravity keeps reducing the acceleration on the stone, until at one point the two forces cancel each other. Then the gravity dominates and brings the stone back to ground. So, for small duration where the stone reverses its direction there is no gravity acting on it. On the other hand, for a freely falling body it is under the gravitational pull all the time. You will be falling but still under the effect of gravity.