When I went to take my pill upon waking this morning, I discovered an immense amount of pain in my jaw. What the hell? I thought carefully back over my weekend’s activities, and discovered not a one that would cause that degree of soreness. I skipped breakfast and showered and carefully, carefully brushed my teefuses. More ow. What the hell could be causing this, if not something unmentionable to the public? Then I remembered my workout last night. (Ahem.) I ran the longest I have in quite a while. What’s that got to do with my jaw? All the hard breathing. I discovered a couple of years ago that if…