Sitting on Clouds?

I was messing around with my Creative World. I flew really, really high in the sky. Then, I fell down. But the strangest thing was when I fell, I landed on the clouds. I couldn't go down to the land. I was stuck! Then, I saved and quit the world, then came back on. i fell off the clouds, but when I fell down, everything I created was gone! i searched the world but couldn't find my creation.Please fix!