I'm still trying to determine if our reactions to the splint are similar. Let me describe the following experience (probably why I'm so disturbed at this moment and am actually traveling to see specialists):
Earlier this year, about 1 year after I'd had orthognathic surgery in 2006, there was still what I observed to be some minor muscle tension left. I still had my hopes high that it had actually been my bite that was the problem and I thought that maybe if I just stopped wearing my soft splint that the problem would go away. (Before orthognathic surgery, it seemed as if I was clenching my teeth uncontrolably. However, after the surgery I completely stopped clenching altogether, but some tension still remained.)
So, in September of 07 I stopped wearing it with my hopes high of being done with this problem for good. The next few months were very strange and often painful. It was as if my body was untorquing itself. My left toe would to numb and I would often get strange jerks. I was also in pain a lot. I was still hopeful that this was just years of the prior muscle tension from my bite 'working' itself out. I also started having memory problems and all kinds of other issues that made me less productive at work. In May of 08, the muscle spasms in my body were completely gone except the right half and a little of the left half of my head. But even with these spasms, I wasn't sleeping well and felt 'sick' during the day.
Hence, I started wearing the soft splint again. Disturbingly, over the course of the next two months, I could feel the muscle spasms gain intensity and slowly spread through my body once again. It has been crazy. As we speak, I can feel a static like feeling in my right foot. My body is still adjusting to the tension in my jaw. However, I made one valuable discovery. In my case, it is far better to have the muscle spasms pushed down into my body and my head jaw operating/feeling okay than vice versa. I will never go w/o the soft splint again. I also realized that a lot of various feeling over the past 5 years, such as my hips feeling tight, or my knee/leg locking or asleep after long periods of time were due to this muscle tension that has transcended my body. This did not happen overnight!
As I said before, I have always been a very tense/energetic person and probably an intense tooth grinder in my youth. I probably had it coming in some for or another (especially w/ the pop). Perhaps TMJ is natural selection's way of taking tense/nervous people out of the gene pool

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It is crazy because last year I was finishing up a Masters degree and was totally productive. It was as if I was so busy that I didn't have time to think about what was going on in my body. I think I slept pretty well too. This year I've been really depressed. I need to put this problem in the corner of my mind once again and be productive.