MetalFortress
Master Don Juan
Last Wednesday at the gym, in the middle of a tough set of chinups involving lots of extra muscle tension to finish the last reps, I experienced what felt like a knife stabbing into my upper left jaw, between my ear and where my upper-left wisdom tooth would have grown in. This has happened before while lifting weights or while screaming along to music in my car, but to a lesser extent, and now, it slightly came back while I was yawning. What the heck is this?