Welcome to Dreamviews, Ron!

You don't need to try very hard to get lucid, apparently. You're probably a lucid natural.

Scary recurring dream elements tend to go away if you confront them - I've read about, and experienced this before.

The sensation you're describing sounds like sleep paralysis. You feel it when WILDing (going from waking to sleeping consciously). However as you said, it happens in your dream. I'm going to guess that your dream body is simulating what you would feel in real life. Since its all in your dream, try to control the feeling just like you control any other elements in the dream.

Also, what you said, about waking from a dream in a dream, that's called a false awakening, or FA.

Feel free to ask if you have any questions or I was unclear about something.