I had a lucid dream last night (details in my DJ) and it turned into a nightmare like 5-10 seconds after being lucid! I don't know why, but it just did. It first faded more and more white, then I fell from the sky and down into darkness. The next thing I know, I'm unable to move or speak, like I am frozen. I THINK it's sleep paralysis. I want to know, how can I stop this from happening? I didn't change it into a nightmare, my mind did. in the back of my mind, something about lucid dreaming scares me sometimes. Everytime I have this certian nightmare, I am so afraid to make any moves but wakeup and not get back into the lucid dream. I don't know how to stop this, because if it happens again, I'll never be able to have a lucid dream my way. Also, everytime I fly or something it isn't vivid, can someone explain that to me, also?