I've been trying to find a reason a have it. At first I thought it was bad posture but then I found that my bad posture was due to other things like breathing problems. Open mouth breathing due to nasal congestion. I also sucked on my tongue to the roof of my mouth a lot due to nasal congestion. Now there are many facts to take into consideration when it comes to nasal congestion like a broken nose, obstructions, allergies, colds, bad immune system and sinus infections. I've had sinus infections most of my life and didn't really know it. I had a little trouble breathing through my noise but I didn't think it was that bad and I had pressure around my sinus cavity. It was due to bacteria building up in there. So I went to the store and got some nasal solution for sinusitis(sinus infections) and now my overall heath is improving. No more tongue sucking, headaches, congestion. So now I don't open mouth breath as much anymore. I am trying colloidal silver for my immune system right now, which kills fungus, bateria and other unwanted living creatures in my body and is said to be good for sinusitis. It seems to be helping but it takes a few days to know for shure what's happening.
Ok, it's the 2nd day since I started taking colloidal silver and guess what the jaw popping is less severe. It use to only not pop when I opened to the right but now I open straight down and it doesn't pop. I used the jaw splint up untill last month and my tmj headaches were gone but I had anxiety and poping. The anxiety in a lot lower. It seems to be working great. The first day I took it I was a little wired but now i'm feeling leveled out. I'll be taking it for a week and i'll post any more improvements.
Oh, by the way you can get colloidal silver from your local health food store for about $8 an ounce. There are some precautions when taking it.
Don't taking it for long periods of time because it has been known to cause argyria, your skin turns grey. If you have somach pain when taking it you may want to get some probotics to ensure healthy intenstines(health store $15).
I also take gaba which helps for weight loss and anxiety and quiting smoking, drinking and on and on.