I ve been sporadically getting a strange sensation in my head. It s difficult to pinpoint the exact location, sort of all over my skull. It s not necessarily painful, just extremely annoying and kind of worrisome. The best word to explain it is burning....some times it will be a quick fleeting sensation...on trail occasions, both at night, it s consistent. I also had the absolute worst headache of my life today, that no amount of ibuprofen or Tylenol would take away.