Holy crap is this one scary. I inhaled deeply and triggered electricity like, severe, sharp head pain. Touching or grinding my jaw triggered it as well. I inhaled through my nose again and the head pain got bad again. This was short, like electricity, and lasted on and off for 5 minutes. I actually debated whether or not to go to the ER.....the pain was that bad. It is gone now but I am tired. I hope I didn't rupture anything. Anyone else get these? I know I have sinus issues but never this...