Yes, I seem to have plenty of these sort of problems lol - from stomach bloating and gastric to anxiety disorders lol.
Anyway, I've found out the problem for my jaw (muscle) pain so I thought I should share it to ya'll.
Symptoms: In my case, my jaw muscle/s feel/s slightly sore (like when you went for a jog and your leg muscles start to ache) whenever I yawn/open my jaw wider than usual (usual as in when I'm eating). It also feels slightly numb when I clench my jaw together tightly.
Suspected problem: Clenching and/or grinding my teeth subconsciously/ during sleep. This usually happens when someone is under stress. Though there are plenty of other causes - check them here.
Solution: (P/S: This is the important part - I have no knowledge of this until today lol :P Hope it helps!)
Remember the saying, "Lips together ... teeth apart." When you are relaxed:
- your teeth should be slightly apart.
- your tongue should be resting gently against the roof of your mouth and
- your lips should be relaxed and barely touching or slightly apart.
Try to keep your upper and lower teeth apart, except when you are eating or swallowing.