I could understand that. Sometimes I have dreams involving me stumbling, or jumping, or drawing attention to my legs, and I’m pretty sure I end up tensing whatever body part in my sleep, that I’m drawing attention to in my dream.
I just woke up from a dream. I needed some type of anti toxin because I was bitten by something, and I had to be held down because I’m afraid of needles, and now my forearms are sore because I most likely laid there in bed tensing my forearms for however long this dream was.
I dream a hell of a lot for whatever reason, but it peaks my interest even more because I remember the majority of my dreams, even minute details. Positioning doesnt do much for me since I mainly sleep face down directly into my pillow. I move in my sleep occasionally so I don’t suffocate myself. If my back is hurting I lay straight on my side.