I've been trying to lucid dream for maybe a month and a half, 3 lucids dreams so far.

Problems is... each time I lucid dream I feel this terrible sensation in my jaw, like im biting so hard that my jaw is going to break itself. My jaw feels locked and I'm unable to open it. I can breath okay, thats not the issue at all it's just that I think the pain keeps waking me up. preventing me from lucid dreaming .

I've been told by many people (including my dentist) that I grind my teeth in my sleep (I didn't sleep with my dentist lol he could tell by the condition of my teeth ) So I think that may be the reason. The dentist has ordered me to start wearing a 'nightguard' so that I don't tear my teeth apart but I'm sure that won't be the ultimate solution... if that's the reason.

Anyways I was just wondering if anyone else has had this or something like it?