I was flying in Survival mode!

I was playing Minecraft Bedrock on my Nintendo Switch with friends in Creative mode. After we built our houses, we went into Survival mode and played. When I tried to sprint and jump, I suddenly started to fly. I did not have Elytra and I saw that I was in Survival mode, but I was flying! I also did not take any damage when I fell It was fun to fly in survival mode, but it was also a bug. I have a screenshot, but I cannot get it on the computer, sorry.