tensed up muscles and nothingness in LD

In my lucid dream in spite of really wanting to get rid of my tensed up jaws and expecting it to happen nothing worked n I was really in pain . It almost made me cry then suddenly I found myself in the void . Imagined a train that took me out of it n in some seconds I was in another dream but this time with no pain.
So I wanna know if I was really in pain in real life or did I end up in the void automatically just to get rid of the pain bcz I expected it to happen ( n failed two times) ?
Does anyone have such experience? Thanks

Pain is in your mind, so were you really in pain? Yes. Pain is a feeling the brain uses to direct attention to an area of the body, oftentimes to let us know we've been damaged. We often have experiences of pain that vaporizes, even in waking life. If you are sitting in meditation, you may feel discomfort, but the moment you move, the pain is gone. Or you may have a headache one moment, and the next moment it is gone, simply because you forgot about it. If this wasn't so, then meditation to reduce pain would be pointless. Also, certain medicines that affect areas of the brain would also be rather useless. Since pain is in the mind, it works.

The pain you feel in a dream (and its passing) may seem more dramatic, but that is only because part of your mind is still saying, "Wow! My jaw really hurt!" What is, in fact happening, is that your mind is creating the appearance of jaw pain and you are associating it with an actual dream jaw that can be hurt (which is of course not true). So you can experience all kinds of things in a dream: pleasure, pain, boredom, etc. No one who is bored in a dream would ever say, "Gee, I wonder whether or not that boredom was real," simply because we associate the feeling of boredom with "self" and the feeling of pain with "other." In reality they are both feelings, and they are as real (waking and sleeping) as your mind is.

Thank u so much. I understand now :)