Ender pearls not moving, infinite levitation

You see, I was making a design for a build in my creative game, when I began to levitate and not move properly unless flying. When I exited the building, I noticed that I was suffocating ( but obviously not dying ) and rising slowly, I attempted to throw an ender pearl in hope to reach the floor but it didn't move, the pearl was still in the air, in the same place, not moving. 

I don't know if this is just lag, or maybe a bad connection to the internet, but it's really weird and needs fixing please. Thank you very much.