wow, this was extremely enlightening. I got my O.N. from a root canal. It was an emergency one that was unexpected that lasted 3.5 hours and then root was left in it. They gave me no pain medication what so ever because they kept telling me that I had no root left. The new TMJ specialist said that I probably contorted my neck in pain in such a way that I've messed up my muscles. The neurologist agrees and says that my muscles are pressing on the nerve. This makes my nerves hurt and then my muscles react to that. So basically an endless cycle. My problem is that it feels like someone just cut off the back of my scalp. Also my neck gets super stiff and my right eye is always in pain inside of my head.
I had my first steriod shots yesterday and now my top of my head hurts and the injection sites hurt. As well, my facial skin feels like it is on fire. Bad reaction I suppose.