upon on occasion, usually when I open my mouth widely, I get a pop sound in the left corner of my mouth, and then I get like a crackling sound when I move my jaw to chew or yawn, and it usually lasts for a while then goes away the next day over night. until I open my mouth too wide too many times and cause it to happen again. There is no pain or discomfort at all with the pop sound or the crackling sound. just annoying to hear it while its happening. some people have told me this can be caused by ear wax build up, which I have had to have my ears cleaned out before. Can you better explain what im experiencing please