This has happened to me quite a couple of times already in my dreams. I dream that I'm unable to close my mouth and sometimes it's even sort of painful. Last night it happened to me again and it's always very weird. It's always happened during the first dreams of the night so I generally remember little or nothing about what else was happening, but I think I have realized what it's related to. Whenever I have a bit of a cold and my nose is kinda clogged, I go to sleep breathing through my mouth. I guess that when Im dreaming and I'm in SP, at some point I must realized that I actually have my mouth open in my real body (since sometimes feelings or sounds get through to your dreaming) and I must try to close my mouth even though Im dreaming and since Im in SP, I'm not really able to close it, cuz it paralyzed. This action must get through into my dreams and turns out to be quite frustrating and sometimes even painful, cuz I try at my best to close my mouth and I really can't do it.

I remember a couple of dreams where I was laughing and I suddenly would realize that I couldn't close my mouth anymore and it was very painful as I was trying to close it, but was unable to. I can't remember if I had a cold those days too.

Has anyone else experienced anything similar?