Rocking during times of distress is a natural coping technique. I do something similiar. Perhaps it comforts you because you were rocked as a baby when in distress. I do something similiar. I put my thumb up to my mouth like I am sucking it when I am thinking or stressed. I believe this is a comfort coping technique that is from my baby days.
I have been known to rock if I'm having a bad day. Usually it means I'm stressed to the max. I would love it if my husband would rock me. LOL
It must be. I don't rock when I'm laying down, except sometimes my husband when we lie down, he hugs me and then he sort of rocks me a little, but not for long like 10 seconds or so. I like that because that does calm me down.
There is just something about the sensation of swaying. :(
Not sure what it means, but I do it when I am feeling really energised or agitated, it is one of the only things that calms me down when I get into a bad state. For me I lie down and rock myself rather than sit in a chair. If I'm lucky I eventually fall asleep. It's gotta be a calming thing do you think?