I Have Always Had Neck And Shoulder Pain. I Am

I have always had neck and shoulder pain. I am now experiencing, dizziness, vertigo, when moving my head or leaning over i experience the sensation of nystagmus without any actual eye movement. I work in a NICU and have been having increased concentration, short term memory loss. I know I clenched my jaw, even when awake and have broken a piece of my night guard off!
While at work the other day, I had rt ear pain down into may jaw and neck. I asked one of our residents to look init, he saw nothing. when I was leaving to go home the ear was hot and reddened,the next day it was gone. I am sorry if this is disjointed but that is how my mind is functioning right now..