Hello again, Apos10

It sounds to me like you were not yet fully in the dream. You may have been in the beginning stages, when the dream was beginning to form and your dream body was being immersed. Since your actual body moved to perform the RC, rather than your dream body, you were most likely experiencing some very vivid HI that was transforming into the scene.

Another possibility is that you THOUGHT you were really moving. If you are experiencing your first LD's, it's not uncommon to get overexcited and wake up (happened to me all the time!) Do you remember if you were able to complete the RC? Or did you wake up as it was happening?